{"id":214005,"date":"2022-11-21T02:21:51","date_gmt":"2022-11-21T01:21:51","guid":{"rendered":"https:\/\/educelec.com\/?page_id=214005"},"modified":"2026-02-13T16:42:24","modified_gmt":"2026-02-13T15:42:24","slug":"res-eq","status":"publish","type":"page","link":"https:\/\/educelec.com\/en\/res-eq\/","title":{"rendered":"Resistance \u00e9quivalente"},"content":{"rendered":"<p>[et_pb_section fb_built=\u00a0\u00bb1&Prime; admin_label=\u00a0\u00bbsection\u00a0\u00bb _builder_version=\u00a0\u00bb4.16&Prime; global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb-50px||||false|false\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb|0px||-30px|false|false\u00a0\u00bb custom_padding=\u00a0\u00bb|||0px|false|false\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<p><a href=\"https:\/\/educelec.com\/en\/\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-216559\" src=\"https:\/\/educelec.com\/wp-content\/uploads\/2025\/12\/chap-300x209.png\" alt=\"\" width=\"17\" height=\"12\" \/> Acceuil<\/a><a href=\"https:\/\/educelec.com\/en\/\">\u00a0&gt;<\/a> <a href=\"https:\/\/educelec.com\/en\/electricite\/\">Electricit\u00e9 &gt; <\/a><strong>r\u00e9sistances \u00e9quivalentes<\/strong><\/p>\n<p>[\/et_pb_text][et_pb_text _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb text_font=\u00a0\u00bbAcme|700|||||||\u00a0\u00bb background_color=\u00a0\u00bb#88C4DD\u00a0\u00bb text_text_shadow_style=\u00a0\u00bbpreset1&Prime; text_text_shadow_blur_strength=\u00a0\u00bb2em\u00a0\u00bb text_text_shadow_color=\u00a0\u00bb#0047E0&Prime; locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb text_font_size__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb]<\/p>\n<blockquote>\n<h1 style=\"text-align: center;\"><strong>Exercices corrig\u00e9s<\/strong><\/h1>\n<h3 style=\"text-align: center;\"><strong>Calcul des r\u00e9sistances \u00e9quivalentes<\/strong><\/h3>\n<\/blockquote>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<ul>\n<li>\n<h2><span style=\"color: #ff0000;\"><strong>Rappel cours.<\/strong><\/span><\/h2>\n<\/li>\n<\/ul>\n<hr \/>\n<h4>Avant de commencer les trois exercices, profitez d\u2019un petit rappel des points cl\u00e9s pour mieux r\u00e9ussir.<\/h4>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h3><span style=\"color: #3366ff;\"><strong>Expression des r\u00e9sistances en s\u00e9rie:<\/strong><\/span><\/h3>\n<h4 data-start=\"73\" data-end=\"200\">Pour un groupement de r\u00e9sistances en s\u00e9rie, la r\u00e9sistance \u00e9quivalente (Req) est \u00e9gale \u00e0 la somme des r\u00e9sistances.<\/h4>\n<h4 data-start=\"207\" data-end=\"245\">L\u2019expression du montage en s\u00e9rie est :<\/h4>\n<h2 style=\"text-align: center;\"><span style=\"color: #993366;\"><strong><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-216440 alignnone size-full\" src=\"https:\/\/educelec.com\/wp-content\/uploads\/2025\/12\/serie.png\" alt=\"\" width=\"387\" height=\"50\" srcset=\"https:\/\/educelec.com\/wp-content\/uploads\/2025\/12\/serie.png 387w, https:\/\/educelec.com\/wp-content\/uploads\/2025\/12\/serie-300x39.png 300w\" sizes=\"auto, (max-width: 387px) 100vw, 387px\" \/><\/strong><\/span><\/h2>\n<h3><span style=\"color: #3366ff;\"><strong>Expression des r\u00e9sistances en Parall\u00e8le:<\/strong><\/span><\/h3>\n<h4 data-start=\"98\" data-end=\"267\">Dans un groupement de r\u00e9sistances en parall\u00e8le, la r\u00e9sistance \u00e9quivalente (Req) est obtenue \u00e0 partir de l\u2019inverse de la somme des inverses des r\u00e9sistances.<\/h4>\n<h4 data-start=\"274\" data-end=\"316\">L\u2019expression du montage en parall\u00e8le est :<\/h4>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-216441 size-full aligncenter\" src=\"https:\/\/educelec.com\/wp-content\/uploads\/2025\/12\/paral.png\" alt=\"\" width=\"389\" height=\"96\" srcset=\"https:\/\/educelec.com\/wp-content\/uploads\/2025\/12\/paral.png 389w, https:\/\/educelec.com\/wp-content\/uploads\/2025\/12\/paral-300x74.png 300w\" sizes=\"auto, (max-width: 389px) 100vw, 389px\" \/><\/p>\n<h4>\u00a0<\/h4>\n<hr \/>\n<h4><br data-start=\"734\" data-end=\"737\" \/>Envie d\u2019aller plus loin ? D\u00e9couvrez le cours complet en cliquant <a href=\"https:\/\/educelec.com\/en\/groupement-des-resistances\/\">ici <img loading=\"lazy\" decoding=\"async\" class=\"wp-image-215990 alignnone\" src=\"https:\/\/educelec.com\/wp-content\/uploads\/2025\/09\/click.png\" alt=\"\" width=\"26\" height=\"26\" srcset=\"https:\/\/educelec.com\/wp-content\/uploads\/2025\/09\/click.png 348w, https:\/\/educelec.com\/wp-content\/uploads\/2025\/09\/click-300x300.png 300w, https:\/\/educelec.com\/wp-content\/uploads\/2025\/09\/click-150x150.png 150w\" sizes=\"auto, (max-width: 26px) 100vw, 26px\" \/><\/a><\/h4>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00a0\u00bb1&Prime; admin_label=\u00a0\u00bbsection\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.1&Prime; custom_margin=\u00a0\u00bb0px||||false|false\u00a0\u00bb border_color_left=\u00a0\u00bb#0C71C3&Prime; locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb-130px||||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb21px||||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<ul>\n<li>\n<h2><span style=\"color: #ff0000;\"><strong>Exercices corrig\u00e9s.<\/strong><\/span><\/h2>\n<\/li>\n<\/ul>\n<h4>Vous trouverez par la suite 3 exercices corrig\u00e9s sur la loi d\u2019Ohm et le calcul de la puissance \u00e9lectrique pour am\u00e9liorer votre niveau\u00a0en\u00a0\u00e9lectricit\u00e9.<\/h4>\n<hr \/>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb-50px||||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb background_color=\u00a0\u00bb#69D0FC\u00a0\u00bb min_height=\u00a0\u00bb40px\u00a0\u00bb height=\u00a0\u00bb40px\u00a0\u00bb custom_padding=\u00a0\u00bb7px||0px|18px|false|false\u00a0\u00bb border_radii=\u00a0\u00bbon|15px|15px|15px|15px\u00a0\u00bb border_width_all=\u00a0\u00bb2px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<ul>\n<li>\n<h3><strong>Exercice N\u00b0 1 (Facile)<\/strong><\/h3>\n<\/li>\n<\/ul>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_padding=\u00a0\u00bb||0px|||\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h4>On branche 2 r\u00e9sistances R1 et R2 en s\u00e9rie.<\/h4>\n<h4>1. Donner le sch\u00e9ma et l\u2019expression de la r\u00e9sistance \u00e9quivalente en s\u00e9rie Re.<\/h4>\n<h4>2. Calculer Re si R1 = R2 = R.<\/h4>\n<h4>3. Calculer Re si R1 = 10\u2126 et R2 = 10K\u2126. Que peut-on conclure si R1 est n\u00e9gligeable<br \/>devant R2 (R1 &lt;&lt; R2).<\/h4>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row module_class=\u00a0\u00bbrv_button1 closed\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb-50px||||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb background_enable_color=\u00a0\u00bboff\u00a0\u00bb min_height=\u00a0\u00bb40px\u00a0\u00bb height=\u00a0\u00bb40px\u00a0\u00bb custom_padding=\u00a0\u00bb7px|||18px|false|false\u00a0\u00bb border_radii=\u00a0\u00bbon|15px|15px|15px|15px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<ul>\n<li>\n<h3><strong><span style=\"color: #3366ff;\">Solutions Exercice N\u00b0 1<\/span> <img loading=\"lazy\" decoding=\"async\" class=\"wp-image-215990 alignnone\" src=\"https:\/\/educelec.com\/wp-content\/uploads\/2025\/09\/click-150x150.png\" alt=\"\" width=\"25\" height=\"25\" srcset=\"https:\/\/educelec.com\/wp-content\/uploads\/2025\/09\/click-150x150.png 150w, https:\/\/educelec.com\/wp-content\/uploads\/2025\/09\/click-300x300.png 300w, https:\/\/educelec.com\/wp-content\/uploads\/2025\/09\/click.png 348w\" sizes=\"auto, (max-width: 25px) 100vw, 25px\" \/><\/strong><\/h3>\n<\/li>\n<\/ul>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row module_id=\u00a0\u00bbreveal1&Prime; _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<p><a href=\"https:\/\/educelec.com\/wp-content\/uploads\/2023\/10\/Solution-exo-1-Requi.png\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-215072 alignnone size-medium\" src=\"https:\/\/educelec.com\/wp-content\/uploads\/2023\/10\/Solution-exo-1-Requi-300x160.png\" alt=\"\" width=\"300\" height=\"160\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00a0\u00bb1&Prime; admin_label=\u00a0\u00bbsection\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.1&Prime; custom_margin=\u00a0\u00bb-50px||||false|false\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb-50px||||false|false\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb background_color=\u00a0\u00bb#69D0FC\u00a0\u00bb min_height=\u00a0\u00bb40px\u00a0\u00bb height=\u00a0\u00bb40px\u00a0\u00bb custom_padding=\u00a0\u00bb7px||0px|18px|false|false\u00a0\u00bb border_radii=\u00a0\u00bbon|15px|15px|15px|15px\u00a0\u00bb border_width_all=\u00a0\u00bb2px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<ul>\n<li>\n<h3><strong>Exercice N\u00b0 2 (Facile +)<\/strong><\/h3>\n<\/li>\n<\/ul>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h4><span class=\"fontstyle0\">On dispose de 6 r\u00e9sistances identiques de 200 <\/span><span class=\"fontstyle2\">\u2126<\/span><span class=\"fontstyle0\">.<br \/>Comment faut-il les brancher pour obtenir une r\u00e9sistance \u00e9quivalente de (faire un sch\u00e9ma):<\/span><\/h4>\n<h4><span class=\"fontstyle0\"><br \/>1. Req<\/span><span class=\"fontstyle0\">\u00a0<\/span><span class=\"fontstyle0\">= 1,2 k<\/span><span class=\"fontstyle3\">\u2126<\/span><span class=\"fontstyle0\">.<br \/>2. Req<\/span><span class=\"fontstyle0\">\u00a0<\/span><span class=\"fontstyle0\">= 0,3 k<\/span><span class=\"fontstyle3\">\u2126<\/span><span class=\"fontstyle0\">.<br \/>3. Req<\/span><span class=\"fontstyle0\">\u00a0<\/span><span class=\"fontstyle0\">= 150 <span class=\"fontstyle3\">\u2126<\/span>.<\/span><\/h4>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row module_class=\u00a0\u00bbrv_button2 closed\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb-49px||||false|false\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb background_enable_color=\u00a0\u00bboff\u00a0\u00bb min_height=\u00a0\u00bb40px\u00a0\u00bb height=\u00a0\u00bb40px\u00a0\u00bb custom_padding=\u00a0\u00bb7px|||18px|false|false\u00a0\u00bb border_radii=\u00a0\u00bbon|15px|15px|15px|15px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<ul>\n<li>\n<h3><span style=\"color: #3366ff;\"><strong>Solutions Exercice N\u00b0 2\u00a0 <img loading=\"lazy\" decoding=\"async\" class=\"wp-image-215990 alignnone\" src=\"https:\/\/educelec.com\/wp-content\/uploads\/2025\/09\/click-150x150.png\" alt=\"\" width=\"26\" height=\"26\" srcset=\"https:\/\/educelec.com\/wp-content\/uploads\/2025\/09\/click-150x150.png 150w, https:\/\/educelec.com\/wp-content\/uploads\/2025\/09\/click-300x300.png 300w, https:\/\/educelec.com\/wp-content\/uploads\/2025\/09\/click.png 348w\" sizes=\"auto, (max-width: 26px) 100vw, 26px\" \/><\/strong><\/span><\/h3>\n<\/li>\n<\/ul>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row module_id=\u00a0\u00bbreveal2&Prime; _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<ol>\n<li>On met tous les r\u00e9sistances en s\u00e9ries.<\/li>\n<\/ol>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-216458 aligncenter\" src=\"https:\/\/educelec.com\/wp-content\/uploads\/2025\/12\/R1-1-1024x102.png\" alt=\"\" width=\"600\" height=\"60\" \/><\/p>\n<p>2. On met tous les r\u00e9sistance en parall\u00e8le<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-216459\" src=\"https:\/\/educelec.com\/wp-content\/uploads\/2025\/12\/R2-1.png\" alt=\"\" width=\"357\" height=\"150\" \/><\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00a0\u00bb1&Prime; admin_label=\u00a0\u00bbsection\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.1&Prime; custom_margin=\u00a0\u00bb-50px||||false|false\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb-50px||||false|false\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb background_color=\u00a0\u00bb#69D0FC\u00a0\u00bb min_height=\u00a0\u00bb40px\u00a0\u00bb height=\u00a0\u00bb40px\u00a0\u00bb custom_padding=\u00a0\u00bb7px||0px|18px|false|false\u00a0\u00bb border_radii=\u00a0\u00bbon|15px|15px|15px|15px\u00a0\u00bb border_width_all=\u00a0\u00bb2px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<ul>\n<li>\n<h3><strong>Exercice N\u00b0 3 (moyenne)<\/strong><\/h3>\n<\/li>\n<\/ul>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h4>Calculer la r\u00e9sistance \u00e9quivalente \u00e0 l\u2019association suivante :<\/h4>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-216455\" src=\"https:\/\/educelec.com\/wp-content\/uploads\/2025\/12\/exo3-req-300x107.png\" alt=\"\" width=\"400\" height=\"143\" \/><\/p>\n<h4>On donne : R1 = 330 \u2126 , R2 = 220 \u2126 et R3 = 820 \u2126.<\/h4>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row module_class=\u00a0\u00bbrv_button closed\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb background_enable_color=\u00a0\u00bboff\u00a0\u00bb min_height=\u00a0\u00bb40px\u00a0\u00bb height=\u00a0\u00bb40px\u00a0\u00bb custom_margin=\u00a0\u00bb-50px||||false|false\u00a0\u00bb custom_padding=\u00a0\u00bb7px|||18px|false|false\u00a0\u00bb border_radii=\u00a0\u00bbon|15px|15px|15px|15px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<ul>\n<li>\n<h3><strong><span style=\"color: #3366ff;\">Solutions Exercice N\u00b0 3<\/span> <img loading=\"lazy\" decoding=\"async\" class=\"wp-image-215990 alignnone\" src=\"https:\/\/educelec.com\/wp-content\/uploads\/2025\/09\/click-150x150.png\" alt=\"\" width=\"28\" height=\"28\" srcset=\"https:\/\/educelec.com\/wp-content\/uploads\/2025\/09\/click-150x150.png 150w, https:\/\/educelec.com\/wp-content\/uploads\/2025\/09\/click-300x300.png 300w, https:\/\/educelec.com\/wp-content\/uploads\/2025\/09\/click.png 348w\" sizes=\"auto, (max-width: 28px) 100vw, 28px\" \/><\/strong><\/h3>\n<\/li>\n<\/ul>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row module_id=\u00a0\u00bbreveal\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h4>R23= R2+R3=1040\u03a9<\/h4>\n<p>&nbsp;<\/p>\n<h4>Req=(R1xR23)\/(R1+R23)<\/h4>\n<h4>Req=(330&#215;1040)\/(330+1040)<\/h4>\n<h4>Req=250,51\u03a9<\/h4>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<hr \/>\n<h4>Pour aller plus loin dans votre apprentissage, t\u00e9l\u00e9chargez gratuitement la s\u00e9rie d\u2019exercices au format PDF <a href=\"https:\/\/educelec.com\/wp-content\/uploads\/2025\/12\/exercices-ohm-puiss.pdf\">clic ici <img loading=\"lazy\" decoding=\"async\" class=\"wp-image-215990 alignnone\" src=\"https:\/\/educelec.com\/wp-content\/uploads\/2025\/09\/click-150x150.png\" alt=\"\" width=\"26\" height=\"26\" srcset=\"https:\/\/educelec.com\/wp-content\/uploads\/2025\/09\/click-150x150.png 150w, https:\/\/educelec.com\/wp-content\/uploads\/2025\/09\/click-300x300.png 300w, https:\/\/educelec.com\/wp-content\/uploads\/2025\/09\/click.png 348w\" sizes=\"auto, (max-width: 26px) 100vw, 26px\" \/><\/a>.<\/h4>\n<p>[\/et_pb_text][et_pb_text _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<hr \/>\n<h4>Vous pouvez \u00e9galement tester vos connaissances avec notre QCM sur le Calcul des r\u00e9sistances \u00e9quivalentes pour \u00e9valuer votre niveau. <a href=\"https:\/\/educelec.com\/en\/qcm-ace1\/\">Clic ici <img loading=\"lazy\" decoding=\"async\" class=\"wp-image-215990 alignnone\" src=\"https:\/\/educelec.com\/wp-content\/uploads\/2025\/09\/click-150x150.png\" alt=\"\" width=\"26\" height=\"26\" srcset=\"https:\/\/educelec.com\/wp-content\/uploads\/2025\/09\/click-150x150.png 150w, https:\/\/educelec.com\/wp-content\/uploads\/2025\/09\/click-300x300.png 300w, https:\/\/educelec.com\/wp-content\/uploads\/2025\/09\/click.png 348w\" sizes=\"auto, (max-width: 26px) 100vw, 26px\" \/>.<\/a><\/h4>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00a0\u00bb1&Prime; specialty=\u00a0\u00bbon\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb-90px||||false|false\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb1_4&Prime; _builder_version=\u00a0\u00bb4.16&Prime; custom_padding=\u00a0\u00bb|||\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb custom_padding__hover=\u00a0\u00bb|||\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb-50px||||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h3><strong><span style=\"color: #3366ff;\">Vous pouvez consulter aussi d&rsquo;autres pages :<\/span><\/strong><\/h3>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=\u00a0\u00bb3_4&Prime; specialty_columns=\u00a0\u00bb3&Prime; _builder_version=\u00a0\u00bb4.16&Prime; custom_padding=\u00a0\u00bb|||\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb custom_padding__hover=\u00a0\u00bb|||\u00a0\u00bb][et_pb_row_inner _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb-50px||||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column_inner saved_specialty_column_type=\u00a0\u00bb3_4&Prime; _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.1&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h5><span style=\"color: #3366ff;\">@<a style=\"color: #3366ff;\" href=\"https:\/\/educelec.com\/en\/div-cour-tens\/\">Diviseur de courant et de tension<\/a>; @<a style=\"color: #3366ff;\" href=\"https:\/\/educelec.com\/en\/loi-kirch\/\">lois de Kirchoff;<\/a> @<a style=\"color: #3366ff;\" href=\"https:\/\/educelec.com\/en\/theo-thev-nort\/\">TheoremeThevenin et Norton.<\/a> @<a style=\"color: #3366ff;\" href=\"https:\/\/educelec.com\/en\/ohm-puiss\/\">Lois d&rsquo;Ohm &amp; puissance<\/a><\/span><\/h5>\n<p>[\/et_pb_text][\/et_pb_column_inner][\/et_pb_row_inner][\/et_pb_column][\/et_pb_section]<\/p>","protected":false},"excerpt":{"rendered":"<p>Acceuil\u00a0&gt; Electricit\u00e9 &gt; r\u00e9sistances \u00e9quivalentesExercices corrig\u00e9s Calcul des r\u00e9sistances \u00e9quivalentes Rappel cours. Avant de commencer les trois exercices, profitez d\u2019un petit rappel des points cl\u00e9s pour mieux r\u00e9ussir.Expression des r\u00e9sistances en s\u00e9rie: Pour un groupement de r\u00e9sistances en s\u00e9rie, la r\u00e9sistance \u00e9quivalente (Req) est \u00e9gale \u00e0 la somme des r\u00e9sistances. L\u2019expression du montage en s\u00e9rie [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","om_disable_all_campaigns":false,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"class_list":["post-214005","page","type-page","status-publish","hentry"],"aioseo_notices":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Resistance \u00e9quivalente - Exercices et Solutions en Electricit\u00e9, Electronique, Electrotechnique et Automatisme industrielle<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/educelec.com\/en\/res-eq\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Resistance \u00e9quivalente - Exercices et Solutions en Electricit\u00e9, Electronique, Electrotechnique et Automatisme industrielle\" \/>\n<meta property=\"og:description\" content=\"Acceuil\u00a0&gt; Electricit\u00e9 &gt; r\u00e9sistances \u00e9quivalentesExercices corrig\u00e9s Calcul des r\u00e9sistances \u00e9quivalentes Rappel cours. Avant de commencer les trois exercices, profitez d\u2019un petit rappel des points cl\u00e9s pour mieux r\u00e9ussir.Expression des r\u00e9sistances en s\u00e9rie: Pour un groupement de r\u00e9sistances en s\u00e9rie, la r\u00e9sistance \u00e9quivalente (Req) est \u00e9gale \u00e0 la somme des r\u00e9sistances. 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Avant de commencer les trois exercices, profitez d\u2019un petit rappel des points cl\u00e9s pour mieux r\u00e9ussir.Expression des r\u00e9sistances en s\u00e9rie: Pour un groupement de r\u00e9sistances en s\u00e9rie, la r\u00e9sistance \u00e9quivalente (Req) est \u00e9gale \u00e0 la somme des r\u00e9sistances. 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