{"id":35638,"date":"2022-11-29T06:00:21","date_gmt":"2022-11-29T05:00:21","guid":{"rendered":"https:\/\/botland.com.pl\/blog\/?p=35638"},"modified":"2026-03-31T14:09:23","modified_gmt":"2026-03-31T12:09:23","slug":"prawo-kirchhoffa-elektrycznosc-przeplyw-pradu","status":"publish","type":"post","link":"https:\/\/botland.com.pl\/blog\/prawo-kirchhoffa-elektrycznosc-przeplyw-pradu\/","title":{"rendered":"Prawo kirchhoffa (elektryczno\u015b\u0107) &#8211; przep\u0142yw pr\u0105du"},"content":{"rendered":"<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Czas czytania:<\/span> <span class=\"rt-time\"> 3<\/span> <span class=\"rt-label rt-postfix\">min.<\/span><\/span>\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"35638\" class=\"elementor elementor-35638\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1e95393 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1e95393\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-7b2ac06\" data-id=\"7b2ac06\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-193f0c5 elementor-widget elementor-widget-text-editor\" data-id=\"193f0c5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Prawa fizyki pozwalaj\u0105 nam na lepsze zrozumienie wi\u0119kszo\u015bci zjawisk, kt\u00f3re maj\u0105 miejsce wok\u00f3\u0142 nas &#8211; dotyczy to tak\u017ce przep\u0142ywu pr\u0105du elektrycznego.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-77d4858 elementor-widget elementor-widget-text-editor\" data-id=\"77d4858\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"blog-special\"><strong>Prawo Kirchhoffa 1 i 2<\/strong> &#8211; Pierwsze prawo Kirchhoffa mo\u017cna uj\u0105\u0107 kr\u00f3cej: algebraiczna suma pr\u0105d\u00f3w w w\u0119\u017ale r\u00f3wna si\u0119 zero. Drugie prawo Kirchhoffa m\u00f3wi, \u017ce w ka\u017cdym oczku obwodu elektrycznego suma napi\u0119\u0107 \u017ar\u00f3d\u0142owych jest r\u00f3wna sumie spadk\u00f3w napi\u0119\u0107 na wszystkich elementach oczka.<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9d33ad5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9d33ad5\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-c39f822\" data-id=\"c39f822\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ae39743 elementor-widget elementor-widget-heading\" data-id=\"ae39743\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><h2 style=\"white-space: normal\">Prawa Kirchhoffa dla pr\u0105d\u00f3w i napi\u0119\u0107<\/h2><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-b7e8edf elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b7e8edf\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d2c0ed9\" data-id=\"d2c0ed9\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-61acfd5 elementor-widget elementor-widget-text-editor\" data-id=\"61acfd5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>W tym artykule przedstawiamy teoretyczne podstawy praw Kirchhoffa dla pr\u0105d\u00f3w i napi\u0119\u0107 w obwodach elektrycznych, a tak\u017ce ich dzia\u0142anie w praktyce.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-eac0ff5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"eac0ff5\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-aa68f4c\" data-id=\"aa68f4c\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8df0ec9 elementor-widget elementor-widget-heading\" data-id=\"8df0ec9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><h2 style=\"white-space: normal\">Prawo Ohma i Kirchhoffa<\/h2><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d7a6f67 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d7a6f67\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-37474cd\" data-id=\"37474cd\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a153173 elementor-widget elementor-widget-text-editor\" data-id=\"a153173\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Aby opisa\u0107 rozmaite zjawiska fizyczne, zar\u00f3wno te wyst\u0119puj\u0105ce naturalnie w przyrodzie, jak i w systemach stworzonych sztucznie, w\u00f3wczas w celu ich zobrazowania, niezb\u0119dne jest u\u017cycie odpowiednich narz\u0119dzi matematycznych. Dotyczy to tak\u017ce opisu zjawisk zachodz\u0105cych w obwodach elektrycznych. Wraz z <a href=\"https:\/\/botland.com.pl\/blog\/prawo-ohma-i-kirchhoffa\/\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\">prawem Ohma<\/a>, najbardziej fundamentalnymi narz\u0119dziami stosowanymi w opisie matematycznym obwod\u00f3w elektrycznych, s\u0105 prawa Kirchhoffa opisuj\u0105ce rozp\u0142yw pr\u0105d\u00f3w w w\u0119\u017ale i rozk\u0142ad napi\u0119\u0107 na elementach tworz\u0105cych oczka obwod\u00f3w. Prawa Kirchhoffa, podobnie jak prawo Ohma, mo\u017cemy stosowa\u0107 zar\u00f3wno dla miniaturowych uk\u0142ad\u00f3w elektronicznych, jak i dla uk\u0142ad\u00f3w elektroenergetycznych przenosz\u0105cych energi\u0119 elektryczn\u0105, niezb\u0119dn\u0105 do zasilania dom\u00f3w, fabryk i innych obiekt\u00f3w.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7b13f75 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7b13f75\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-019c15d\" data-id=\"019c15d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-690d034 elementor-widget elementor-widget-heading\" data-id=\"690d034\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><h2 style=\"white-space: normal\">Prawo Kirchhoffa dla rozp\u0142ywu pr\u0105d\u00f3w w obwodach elektrycznych<\/h2><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4824d8e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4824d8e\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-eb4dd39\" data-id=\"eb4dd39\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c507172 elementor-widget elementor-widget-text-editor\" data-id=\"c507172\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Pr\u0105dowe Prawo Kirchhoffa (zwane skr\u00f3towo PPK lub KCL) stosujemy wtedy, kiedy chcemy wyznaczy\u0107 pr\u0105dy w odniesieniu do w\u0119z\u0142a obwodu, w kt\u00f3rym te pr\u0105dy si\u0119 ze sob\u0105 zbiegaj\u0105. Rozpatrzmy sytuacj\u0119 przedstawion\u0105 na rys. 1, kt\u00f3ra przedstawia przyk\u0142adowy w\u0119ze\u0142 utworzony z przewod\u00f3w z pr\u0105dem:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-687c514 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"687c514\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-32504b3\" data-id=\"32504b3\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c25e61b elementor-widget elementor-widget-image\" data-id=\"c25e61b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"531\" height=\"427\" src=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2022\/11\/rys1.webp\" class=\"attachment-large size-large wp-image-43482\" alt=\"\" srcset=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2022\/11\/rys1.webp 531w, https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2022\/11\/rys1-300x241.webp 300w\" sizes=\"(max-width: 531px) 100vw, 531px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Rys. 1 - W\u0119ze\u0142 obwodu pr\u0105du sta\u0142ego utworzony z przewod\u00f3w z pr\u0105dem<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-572bbc8 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"572bbc8\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-52613e7\" data-id=\"52613e7\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-949b607 elementor-widget elementor-widget-text-editor\" data-id=\"949b607\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Mo\u017cemy zauwa\u017cy\u0107, \u017ce nasz w\u0119ze\u0142 \u0142\u0105czy ze sob\u0105 pi\u0119\u0107 przewod\u00f3w z pr\u0105dem, ale pr\u0105dy te maj\u0105 r\u00f3\u017cne kierunki przep\u0142ywu. Pr\u0105dy\u00a0<span style=\"font-weight: bolder;\"><em>I<span style=\"font-size: 12px; line-height: 0; position: relative; vertical-align: baseline; bottom: -0.25em;\">1<\/span><\/em><\/span>,<span style=\"font-weight: bolder;\"><em>\u00a0I<span style=\"font-size: 12px; line-height: 0; position: relative; vertical-align: baseline; bottom: -0.25em;\">2<\/span>,\u00a0<\/em><\/span>i\u00a0<span style=\"font-weight: bolder;\"><em>I<span style=\"font-size: 12px; line-height: 0; position: relative; vertical-align: baseline; bottom: -0.25em;\">3<\/span><\/em><\/span>\u00a0s\u0105 pr\u0105dami wp\u0142ywaj\u0105cymi do w\u0119z\u0142a, a pr\u0105dy<span style=\"font-weight: bolder;\"><em>\u00a0I<span style=\"font-size: 12px; line-height: 0; position: relative; vertical-align: baseline; bottom: -0.25em;\">4<\/span>\u00a0i I<span style=\"font-size: 12px; line-height: 0; position: relative; vertical-align: baseline; bottom: -0.25em;\">5<\/span><\/em><\/span>\u00a0z tego samego w\u0119z\u0142a wyp\u0142ywaj\u0105. Na podstawie zaznaczonych kierunk\u00f3w przep\u0142ywu pr\u0105d\u00f3w, mo\u017cemy utworzy\u0107 r\u00f3wnania bilansu tych pr\u0105d\u00f3w:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7b6baed elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7b6baed\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-cdb0576\" data-id=\"cdb0576\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-45735ee elementor-widget elementor-widget-image\" data-id=\"45735ee\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"315\" height=\"115\" src=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2022\/11\/rys1112.jpg\" class=\"attachment-large size-large wp-image-43486\" alt=\"\" srcset=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2022\/11\/rys1112.jpg 315w, https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2022\/11\/rys1112-300x110.jpg 300w\" sizes=\"(max-width: 315px) 100vw, 315px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-27bb7f3 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"27bb7f3\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4831917\" data-id=\"4831917\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-61396d1 elementor-widget elementor-widget-text-editor\" data-id=\"61396d1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>z powy\u017cszych r\u00f3wna\u0144 wynika wniosek nazywany pr\u0105dowym prawem Kirchhoffa. W odniesieniu do r\u00f3wnania (1.1) m\u00f3wi ono, \u017ce algebraiczna suma pr\u0105d\u00f3w wp\u0142ywaj\u0105cych do w\u0119z\u0142a jest r\u00f3wna sumie pr\u0105d wyp\u0142ywaj\u0105cych z tego samego w\u0119z\u0142a. Natomiast r\u00f3wnanie (1.2) jest przekszta\u0142ceniem r\u00f3wnania (1.1), z kt\u00f3rego wynika, \u017ce algebraiczna suma pr\u0105d\u00f3w wp\u0142ywaj\u0105cych do w\u0119z\u0142a i wyp\u0142ywaj\u0105cych z niego, jest r\u00f3wna zeru.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-891e7b0 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"891e7b0\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-125471f\" data-id=\"125471f\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c07dac1 elementor-widget elementor-widget-heading\" data-id=\"c07dac1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><h2 style=\"white-space: normal\">Pr\u0105dowe prawo Kirchhoffa - sens fizyczny<\/h2><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-44910b4 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"44910b4\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b099c06\" data-id=\"b099c06\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-31dbcf6 elementor-widget elementor-widget-text-editor\" data-id=\"31dbcf6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Bior\u0105c bardziej ,,pod lup\u0119\u201d rozp\u0142yw pr\u0105d\u00f3w w w\u0119\u017ale obwodu elektrycznego, mo\u017cemy tak\u017ce zauwa\u017cy\u0107 sens fizyczny pr\u0105dowego prawa Kirchhoffa. Dotyczy to faktu m\u00f3wi\u0105cego, \u017ce liczba elektron\u00f3w dop\u0142ywaj\u0105cych w jednostce czasu do w\u0119z\u0142a jest r\u00f3wna liczbie elektron\u00f3w z tego w\u0119z\u0142a odp\u0142ywaj\u0105cych. Oznacza to tak\u017ce, \u017ce w w\u0119\u017ale obwodu elektrony zar\u00f3wno nie mog\u0105 si\u0119 gromadzi\u0107, ale tak\u017ce z tego w\u0119z\u0142a ubywa\u0107 w nieznanym kierunku.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c356395 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c356395\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-75aed90\" data-id=\"75aed90\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-52ee675 elementor-widget elementor-widget-heading\" data-id=\"52ee675\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><h2 style=\"white-space: normal\">Prawo Kirchhoffa dla rozk\u0142adu napi\u0119\u0107 na elementach obwodu elektrycznego<\/h2><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6538e1d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6538e1d\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4ba93af\" data-id=\"4ba93af\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3a101d9 elementor-widget elementor-widget-text-editor\" data-id=\"3a101d9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Pr\u0105dowe prawo Kirchhoffa opisuje bilans pr\u0105d\u00f3w w w\u0119\u017ale, poprzez nadanie im odpowiednich zwrot\u00f3w w kierunku tego samego w\u0119z\u0142a, tj. pr\u0105d\u00f3w wp\u0142ywaj\u0105cych i wyp\u0142ywaj\u0105cych. Na podobnej, analogicznej zasadzie, przedstawia si\u0119 napi\u0119ciowe prawo Kirchhoffa (zwane skr\u00f3towo NPK lub KVL), kt\u00f3re umo\u017cliwia obliczenie rozk\u0142adu napi\u0119\u0107 na elementach tworz\u0105cych obw\u00f3d elektryczny &#8211; tutaj znak przy napi\u0119ciu zale\u017cy od tego, czy jest to napi\u0119cie \u017ar\u00f3d\u0142owe, czy spadek napi\u0119cia na rezystancji (lub dla obwod\u00f3w pr\u0105du zmiennego &#8211; impedancji) odbiornika. Rozpatrzmy teraz przyk\u0142adowy obw\u00f3d elektryczny sk\u0142adaj\u0105cy si\u0119 z oczka utworzonego na trzech w\u0119z\u0142ach (rys. 2):<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9c300ff elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9c300ff\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-eaf2a29\" data-id=\"eaf2a29\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-41fc3a2 elementor-widget elementor-widget-image\" data-id=\"41fc3a2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"587\" height=\"391\" src=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2022\/11\/rys2.webp\" class=\"attachment-large size-large wp-image-43488\" alt=\"\" srcset=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2022\/11\/rys2.webp 587w, https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2022\/11\/rys2-300x200.webp 300w\" sizes=\"(max-width: 587px) 100vw, 587px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Rys. 2 - Przyk\u0142adowe oczko obwodu elektrycznego pr\u0105du sta\u0142ego z zaznaczon\u0105 umown\u0105 orientacj\u0105 pr\u0105du oczkowego<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-944711b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"944711b\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-35ae841\" data-id=\"35ae841\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-cf1397a elementor-widget elementor-widget-text-editor\" data-id=\"cf1397a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>W pierwszej kolejno\u015bci, musimy przyj\u0105\u0107 umowny kierunek pr\u0105du oczkowego &#8211; w naszym przypadku, przyjmujemy orientacj\u0119 zgodn\u0105 z ruchem wskaz\u00f3wek zegara. Z tego wzgl\u0119du, pr\u0105dom ga\u0142\u0119ziowym p\u0142yn\u0105cym zgodnie z orientacj\u0105 oczka, przypisujemy znak \u201c+\u201d, a pr\u0105dom p\u0142yn\u0105cym przeciwnie do orientacji tego oczka &#8211; przypisujemy znak \u201c-\u201d. Natomiast opisuj\u0105c napi\u0119cia na elementach obwodu, dla napi\u0119\u0107 skierowanych przeciwnie do p\u0142yn\u0105cego pr\u0105du na konkretnym elemencie przyjmujemy dla nich znak \u201c-\u201d, a w przypadku kiedy napi\u0119cie jest skierowane zgodnie z kierunkiem pr\u0105du oczkowego &#8211; przyjmujemy znak \u201c+\u201d. Powo\u0142uj\u0105c si\u0119 na najbardziej standardow\u0105 posta\u0107 prawa Ohma dla obwod\u00f3w pr\u0105du sta\u0142ego w stanie ustalonym oraz na opisan\u0105 konwencj\u0119 znakowania pr\u0105d\u00f3w i napi\u0119\u0107, mo\u017cemy u\u0142o\u017cy\u0107 r\u00f3wnanie bilansu napi\u0119\u0107 w naszym obwodzie (2.1):<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4419d11 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4419d11\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-7953cdd\" data-id=\"7953cdd\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-503f15b elementor-widget elementor-widget-image\" data-id=\"503f15b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"372\" height=\"125\" src=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2022\/11\/rys2122.webp\" class=\"attachment-large size-large wp-image-43490\" alt=\"\" srcset=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2022\/11\/rys2122.webp 372w, https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2022\/11\/rys2122-300x101.webp 300w\" sizes=\"(max-width: 372px) 100vw, 372px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-0023836 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"0023836\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-a8746ea\" data-id=\"a8746ea\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6327217 elementor-widget elementor-widget-text-editor\" data-id=\"6327217\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Z r\u00f3wnania (2.1) wynika wniosek stanowi\u0105cy napi\u0119ciowe prawo Kirchhoffa, kt\u00f3re m\u00f3wi, \u017ce algebraiczna suma spadk\u00f3w napi\u0119\u0107 na rezystancji (lub dla obwod\u00f3w pr\u0105du zmiennego &#8211; impedancji) odbiornik\u00f3w w oczku obwodu, jest r\u00f3wna sumie napi\u0119\u0107 \u017ar\u00f3d\u0142owych w tym samym oczku. Natomiast po przekszta\u0142ceniu r\u00f3wnania (2.1) na r\u00f3wnanie (2.2) otrzymujemy delikatnie zmienion\u0105 posta\u0107 napi\u0119ciowego prawa Kirchhoffa, kt\u00f3ra m\u00f3wi, \u017ce suma spadk\u00f3w napi\u0119\u0107 na odbiornikach i napi\u0119\u0107 \u017ar\u00f3d\u0142owych w jednym oczku, jest r\u00f3wna zeru.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-22083b0 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"22083b0\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-0ed4889\" data-id=\"0ed4889\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5089d80 elementor-widget elementor-widget-heading\" data-id=\"5089d80\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><h2 style=\"white-space: normal\">Napi\u0119ciowe prawo Kirchhoffa - sens fizyczny<\/h2><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-71a8fd1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"71a8fd1\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5e12a8f\" data-id=\"5e12a8f\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-00a0fb6 elementor-widget elementor-widget-text-editor\" data-id=\"00a0fb6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Podobnie jak pr\u0105dowe prawo Kirchhoffa, r\u00f3wnie\u017c napi\u0119ciowe prawo Kirchhoffa ma sw\u00f3j sens fizyczny. Wyra\u017ca ono, \u017ce przy przesuwaniu si\u0119 wzd\u0142u\u017c obiegu oczka obwodu poprzez \u017ar\u00f3d\u0142a si\u0142y elektromotorycznej, na kt\u00f3rych napi\u0119cie wzrasta i poprzez odbiorniki, na kt\u00f3rych napi\u0119cie spada, po dokonaniu pojedynczego obiegu wzd\u0142u\u017c oczka powracamy do punktu startowego i do tej samej warto\u015bci potencja\u0142u elektrycznego. Oznacza to, \u017ce oczko obwodu nie mo\u017ce by\u0107 zar\u00f3wno \u017ar\u00f3d\u0142em napi\u0119cia ani odbiornikiem, na kt\u00f3rym powstaje spadek napi\u0119cia.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>W tym artykule przedstawiamy teoretyczne podstawy praw Kirchhoffa dla pr\u0105d\u00f3w i napi\u0119\u0107 w obwodach elektrycznych, a tak\u017ce ich dzia\u0142anie w praktyce.<\/p>\n","protected":false},"author":22,"featured_media":63417,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[179],"tags":[],"class_list":["post-35638","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kompendium"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Prawo kirchhoffa (elektryczno\u015b\u0107) - przep\u0142yw pr\u0105du - Botland<\/title>\n<meta name=\"description\" content=\"Prawa Kirchhoffa stanowi\u0105 obok prawa Ohma jedno z najbardziej praktycznych narz\u0119dzi przy analizie dowolnych obwod\u00f3w elektrycznych - poznaj niezb\u0119dne podstawy teoretyczne w praktyce!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/botland.com.pl\/blog\/prawo-kirchhoffa-elektrycznosc-przeplyw-pradu\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Prawo kirchhoffa (elektryczno\u015b\u0107) - przep\u0142yw pr\u0105du - Botland\" \/>\n<meta property=\"og:description\" content=\"Prawa Kirchhoffa stanowi\u0105 obok prawa Ohma jedno z najbardziej praktycznych narz\u0119dzi przy analizie dowolnych obwod\u00f3w elektrycznych - poznaj niezb\u0119dne podstawy teoretyczne w praktyce!\" \/>\n<meta property=\"og:url\" content=\"https:\/\/botland.com.pl\/blog\/prawo-kirchhoffa-elektrycznosc-przeplyw-pradu\/\" \/>\n<meta property=\"og:site_name\" content=\"Botland\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/facebook.com\/Botland\/\" \/>\n<meta property=\"article:published_time\" content=\"2022-11-29T05:00:21+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-31T12:09:23+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2023\/05\/new2023-kirchhoff.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1510\" \/>\n\t<meta property=\"og:image:height\" content=\"755\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Sandra Marcinkowska\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Napisane przez\" \/>\n\t<meta name=\"twitter:data1\" content=\"Sandra Marcinkowska\" \/>\n\t<meta name=\"twitter:label2\" content=\"Szacowany czas czytania\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minut\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/botland.com.pl\\\/blog\\\/prawo-kirchhoffa-elektrycznosc-przeplyw-pradu\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/botland.com.pl\\\/blog\\\/prawo-kirchhoffa-elektrycznosc-przeplyw-pradu\\\/\"},\"author\":{\"name\":\"Sandra Marcinkowska\",\"@id\":\"https:\\\/\\\/botland.store\\\/blog\\\/#\\\/schema\\\/person\\\/7a06711dccb739346fbe8c8cf34927f2\"},\"headline\":\"Prawo kirchhoffa (elektryczno\u015b\u0107) &#8211; 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