{"id":261,"date":"2026-01-27T02:38:20","date_gmt":"2026-01-27T02:38:20","guid":{"rendered":"https:\/\/doctorp4physics.co.uk\/?page_id=261"},"modified":"2026-02-22T14:44:31","modified_gmt":"2026-02-22T14:44:31","slug":"capacitors","status":"publish","type":"page","link":"https:\/\/doctorp4physics.co.uk\/es\/capacitors\/","title":{"rendered":"6.1 Capacitors"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; specialty=&#8221;on&#8221; padding_top_1=&#8221;50px&#8221; padding_bottom_1=&#8221;30px&#8221; padding_bottom_2=&#8221;0px&#8221; padding_top_bottom_link_1=&#8221;false&#8221; padding_top_bottom_link_2=&#8221;false&#8221; padding_left_right_link_1=&#8221;false&#8221; padding_left_right_link_2=&#8221;false&#8221; padding_1_tablet=&#8221;0px||0px||true|false&#8221; padding_1_phone=&#8221;&#8221; padding_1_last_edited=&#8221;on|phone&#8221; admin_label=&#8221;Header&#8221; _builder_version=&#8221;4.16&#8243; background_color=&#8221;#f8f9fa&#8221; custom_padding=&#8221;||0px||false|false&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;1_2&#8243; specialty_columns=&#8221;2&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_row_inner _builder_version=&#8221;4.16&#8243; custom_margin=&#8221;||||false|false&#8221; custom_margin_last_edited=&#8221;off|tablet&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column_inner saved_specialty_column_type=&#8221;1_2&#8243; _builder_version=&#8221;4.16&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_divider color=&#8221;#f9ce6e&#8221; divider_position=&#8221;center&#8221; divider_weight=&#8221;1px&#8221; _builder_version=&#8221;4.16&#8243; width=&#8221;120px&#8221; height=&#8221;7px&#8221; box_shadow_style=&#8221;preset7&#8243; box_shadow_horizontal=&#8221;40px&#8221; box_shadow_vertical=&#8221;0px&#8221; box_shadow_color=&#8221;#f9ce6e&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_divider][et_pb_text _builder_version=&#8221;4.27.5&#8243; header_4_font=&#8221;PT Sans|700||on|||||&#8221; header_4_text_color=&#8221;#ffc107&#8243; header_4_font_size=&#8221;11px&#8221; header_4_letter_spacing=&#8221;1px&#8221; custom_margin=&#8221;-38px|||130px|false|false&#8221; custom_padding=&#8221;||||false|false&#8221; hover_enabled=&#8221;0&#8243; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;]<\/p>\n<h4>Topic<\/h4>\n<p>[\/et_pb_text][et_pb_text _builder_version=&#8221;4.27.5&#8243; text_font=&#8221;PT Sans||||||||&#8221; text_font_size=&#8221;16px&#8221; text_line_height=&#8221;1.8em&#8221; header_font=&#8221;Playfair Display|700|||||||&#8221; header_font_size=&#8221;60px&#8221; header_line_height=&#8221;1.1em&#8221; hover_enabled=&#8221;0&#8243; header_font_size_tablet=&#8221;40px&#8221; header_font_size_phone=&#8221;30px&#8221; header_font_size_last_edited=&#8221;on|phone&#8221; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;]<\/p>\n<h1>Capacitors<\/h1>\n<p>Explore how these essential electrical components store charge and energy in circuits. Learn what capacitance is, how capacitors behave when charging and discharging, and how they\u2019re used in a wide range of applications from smoothing signals to timing functions.<\/p>\n<p>[\/et_pb_text][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner column_structure=&#8221;1_2,1_2&#8243; use_custom_gutter=&#8221;on&#8221; gutter_width=&#8221;2&#8243; _builder_version=&#8221;4.16&#8243; custom_margin_tablet=&#8221;-30px||||false|false&#8221; custom_margin_last_edited=&#8221;off|desktop&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column_inner type=&#8221;1_2&#8243; saved_specialty_column_type=&#8221;1_2&#8243; _builder_version=&#8221;4.16&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_button button_url=&#8221;https:\/\/doctorp4physics.co.uk\/contact\/&#8221; url_new_window=&#8221;on&#8221; button_text=&#8221;Start Learning&#8221; _builder_version=&#8221;4.27.5&#8243; custom_button=&#8221;on&#8221; button_text_size=&#8221;12px&#8221; button_text_color=&#8221;#ffffff&#8221; 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global_colors_info=&#8221;{}&#8221;][et_pb_row column_structure=&#8221;1_2,1_2&#8243; _builder_version=&#8221;4.16&#8243; custom_margin=&#8221;||||false|false&#8221; custom_padding=&#8221;||||false|false&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;1_2&#8243; _builder_version=&#8221;4.16&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.27.5&#8243; text_font=&#8221;PT Sans||||||||&#8221; text_font_size=&#8221;16px&#8221; text_line_height=&#8221;1.8em&#8221; header_2_font=&#8221;Playfair Display|700|||||||&#8221; header_2_font_size=&#8221;50px&#8221; header_2_line_height=&#8221;1.3em&#8221; hover_enabled=&#8221;0&#8243; header_2_font_size_tablet=&#8221;32px&#8221; header_2_font_size_phone=&#8221;24px&#8221; header_2_font_size_last_edited=&#8221;on|tablet&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;]<\/p>\n<h2>Key Concepts<\/h2>\n<section class=\"elementor-element elementor-element-e69481b elementor-section-boxed elementor-section-height-default elementor-section-height-default elementor-section elementor-top-section\" data-id=\"e69481b\" data-element_type=\"section\">\n<div class=\"elementor-container elementor-column-gap-default\">\n<div class=\"elementor-row\">\n<div class=\"elementor-element elementor-element-7e6f417 elementor-column elementor-col-100 elementor-top-column\" data-id=\"7e6f417\" data-element_type=\"column\">\n<div class=\"elementor-column-wrap elementor-element-populated\">\n<div class=\"elementor-widget-wrap\">\n<div class=\"elementor-element elementor-element-e23c027 elementor-widget elementor-widget-text-editor\" data-id=\"e23c027\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n<div class=\"elementor-widget-container\">\n<div class=\"elementor-text-editor elementor-clearfix\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<p>[\/et_pb_text][et_pb_blurb title=&#8221;Capacitors in Circuits&#8221; use_icon=&#8221;on&#8221; font_icon=&#8221;&#xe052;||divi||400&#8243; icon_color=&#8221;#007aff&#8221; icon_placement=&#8221;left&#8221; content_max_width=&#8221;800px&#8221; _builder_version=&#8221;4.27.5&#8243; header_font=&#8221;PT Sans|700|||||||&#8221; header_text_color=&#8221;#2a3749&#8243; header_font_size=&#8221;16px&#8221; header_line_height=&#8221;1.9em&#8221; hover_enabled=&#8221;0&#8243; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;][\/et_pb_blurb][et_pb_blurb title=&#8221;Energy Stored by Capacitors&#8221; use_icon=&#8221;on&#8221; font_icon=&#8221;&#xe052;||divi||400&#8243; icon_color=&#8221;#007aff&#8221; icon_placement=&#8221;left&#8221; content_max_width=&#8221;800px&#8221; _builder_version=&#8221;4.27.5&#8243; header_font=&#8221;PT Sans|700|||||||&#8221; header_text_color=&#8221;#2a3749&#8243; header_font_size=&#8221;16px&#8221; header_line_height=&#8221;1.9em&#8221; hover_enabled=&#8221;0&#8243; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;][\/et_pb_blurb][et_pb_blurb title=&#8221;Discharging Capacitors&#8221; use_icon=&#8221;on&#8221; font_icon=&#8221;&#xe052;||divi||400&#8243; icon_color=&#8221;#007aff&#8221; icon_placement=&#8221;left&#8221; content_max_width=&#8221;800px&#8221; _builder_version=&#8221;4.27.5&#8243; header_font=&#8221;PT Sans|700|||||||&#8221; header_text_color=&#8221;#2a3749&#8243; header_font_size=&#8221;16px&#8221; header_line_height=&#8221;1.9em&#8221; hover_enabled=&#8221;0&#8243; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;][\/et_pb_blurb][et_pb_blurb title=&#8221;Uses of Capacitors&#8221; use_icon=&#8221;on&#8221; font_icon=&#8221;&#xe052;||divi||400&#8243; icon_color=&#8221;#007aff&#8221; icon_placement=&#8221;left&#8221; content_max_width=&#8221;800px&#8221; _builder_version=&#8221;4.27.5&#8243; header_font=&#8221;PT Sans|700|||||||&#8221; header_text_color=&#8221;#2a3749&#8243; header_font_size=&#8221;16px&#8221; header_line_height=&#8221;1.9em&#8221; hover_enabled=&#8221;0&#8243; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;][\/et_pb_blurb][\/et_pb_column][et_pb_column type=&#8221;1_2&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;||||false|false&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text quote_border_weight=&#8221;8px&#8221; quote_border_color=&#8221;#f9ce6e&#8221; _builder_version=&#8221;4.27.5&#8243; header_2_font=&#8221;Playfair Display|700|||||||&#8221; header_2_text_color=&#8221;#2A3749&#8243; header_2_font_size=&#8221;42px&#8221; header_2_line_height=&#8221;1.1em&#8221; header_3_font=&#8221;Playfair Display|700|||||||&#8221; header_3_font_size=&#8221;40px&#8221; header_3_line_height=&#8221;1.2em&#8221; custom_padding=&#8221;||||false|false&#8221; hover_enabled=&#8221;0&#8243; header_2_font_size_tablet=&#8221;38px&#8221; header_2_font_size_phone=&#8221;25px&#8221; header_2_font_size_last_edited=&#8221;on|desktop&#8221; header_3_font_size_tablet=&#8221;34px&#8221; header_3_font_size_phone=&#8221;24px&#8221; header_3_font_size_last_edited=&#8221;on|phone&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;]<\/p>\n<blockquote>\n<h3><span>From <\/span><span>Leyden <\/span><span>Jar <\/span><span>to <\/span><span>Modern <\/span><span>Capacitors<\/span><\/h3>\n<\/blockquote>\n<p>[\/et_pb_text][et_pb_text _builder_version=&#8221;4.27.5&#8243; text_font=&#8221;PT Sans||||||||&#8221; text_text_color=&#8221;#62748a&#8221; text_font_size=&#8221;16px&#8221; text_line_height=&#8221;1.8em&#8221; hover_enabled=&#8221;0&#8243; text_font_size_tablet=&#8221;&#8221; text_font_size_phone=&#8221;14px&#8221; text_font_size_last_edited=&#8221;on|desktop&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;]<\/p>\n<p dir=\"ltr\" class=\"CDt4Ke zfr3Q\">The Leyden Jar in 1746 can be considered the precursor to the modern capacitor &#8211; more than 50 years before Allesandro Volta developed the Voltaic pile (precursor to the battery).<\/p>\n<p dir=\"ltr\" class=\"CDt4Ke zfr3Q\">Not much use at the time, they have now shrunk in size and are a critical component in most electrical devices. Combine them with an inductor and you can make the current undergo SHM.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; custom_padding_last_edited=&#8221;on|phone&#8221; admin_label=&#8221;Call to Action&#8221; _builder_version=&#8221;4.16&#8243; background_color=&#8221;#007aff&#8221; width=&#8221;90%&#8221; module_alignment=&#8221;center&#8221; custom_padding=&#8221;80px||80px||true|false&#8221; custom_padding_tablet=&#8221;60px||60px||true|false&#8221; custom_padding_phone=&#8221;40px||40px||true|false&#8221; border_radii=&#8221;on|30px|30px|30px|30px&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row _builder_version=&#8221;4.16&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.27.5&#8243; header_2_font=&#8221;Playfair Display|700|||||||&#8221; header_2_text_color=&#8221;#ffffff&#8221; header_2_font_size=&#8221;50px&#8221; header_2_line_height=&#8221;1.3em&#8221; hover_enabled=&#8221;0&#8243; header_2_font_size_tablet=&#8221;32px&#8221; header_2_font_size_phone=&#8221;24px&#8221; header_2_font_size_last_edited=&#8221;on|phone&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;]<\/p>\n<h2>Power Your Knowledge<\/h2>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;2_3,1_3&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;0px|||||&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;2_3&#8243; _builder_version=&#8221;4.16&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.27.5&#8243; text_font=&#8221;PT Sans||||||||&#8221; text_text_color=&#8221;#ffffff&#8221; text_font_size=&#8221;16px&#8221; text_line_height=&#8221;1.8em&#8221; hover_enabled=&#8221;0&#8243; text_font_size_tablet=&#8221;&#8221; text_font_size_phone=&#8221;14px&#8221; text_font_size_last_edited=&#8221;on|desktop&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;]<\/p>\n<p>Capacitors are key to both theoretical and practical electrical physics. With clear lessons and real examples, you\u2019ll gain the confidence to analyse capacitor behaviour and apply this knowledge to circuits and exams!<\/p>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.16&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_button button_url=&#8221;https:\/\/doctorp4physics.co.uk\/contact\/&#8221; url_new_window=&#8221;on&#8221; button_text=&#8221;Get Started&#8221; _builder_version=&#8221;4.27.5&#8243; custom_button=&#8221;on&#8221; button_text_size=&#8221;12px&#8221; button_text_color=&#8221;#ffffff&#8221; button_bg_color=&#8221;#2A3749&#8243; button_border_width=&#8221;0px&#8221; button_border_radius=&#8221;100px&#8221; button_letter_spacing=&#8221;2px&#8221; button_font=&#8221;PT Sans|700||on|||||&#8221; button_use_icon=&#8221;off&#8221; custom_padding=&#8221;20px|30px|20px|30px|true|true&#8221; hover_enabled=&#8221;0&#8243; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221; box_shadow_color__hover=&#8221;#2585b2&#8243; box_shadow_blur__hover_enabled=&#8221;off&#8221; box_shadow_blur__hover=&#8221;20px&#8221; box_shadow_vertical__hover_enabled=&#8221;off&#8221; box_shadow_vertical__hover=&#8221;10px&#8221; sticky_enabled=&#8221;0&#8243;][\/et_pb_button][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; custom_padding_last_edited=&#8221;off|tablet&#8221; admin_label=&#8221;Footer&#8221; _builder_version=&#8221;4.16&#8243; background_image=&#8221;https:\/\/doctorp4physics.co.uk\/wp-content\/uploads\/2026\/01\/Tutoring-Service_Footer.png&#8221; background_size=&#8221;contain&#8221; background_position=&#8221;bottom_center&#8221; custom_padding=&#8221;||16vw||false|false&#8221; custom_padding_tablet=&#8221;||||false|false&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row custom_padding_last_edited=&#8221;on|tablet&#8221; _builder_version=&#8221;4.16&#8243; background_image=&#8221;https:\/\/doctorp4physics.co.uk\/wp-content\/uploads\/2026\/01\/bac-01.png&#8221; background_size=&#8221;contain&#8221; custom_padding=&#8221;160px|100px|100px|100px|false|true&#8221; custom_padding_tablet=&#8221;10px|40px|10px|40px|true|true&#8221; custom_padding_phone=&#8221;0px|0px|0px|0px|true|true&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.27.5&#8243; text_font=&#8221;PT Sans||||||||&#8221; text_text_color=&#8221;#62748a&#8221; text_font_size=&#8221;16px&#8221; text_line_height=&#8221;1.8em&#8221; header_2_font=&#8221;Playfair Display|700|||||||&#8221; header_2_text_color=&#8221;#2a3749&#8243; header_2_font_size=&#8221;50px&#8221; header_2_line_height=&#8221;1.3em&#8221; text_orientation=&#8221;center&#8221; max_width=&#8221;600px&#8221; module_alignment=&#8221;center&#8221; hover_enabled=&#8221;0&#8243; header_2_font_size_tablet=&#8221;32px&#8221; header_2_font_size_phone=&#8221;24px&#8221; header_2_font_size_last_edited=&#8221;on|phone&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;]<\/p>\n<h2>Let&#8217;s Learn Together!<\/h2>\n<p><span>If you\u2019ve fallen out of love with Physics; you\u2019re struggling with the mathematical nature of the subject; you\u2019re not sure how to revise effectively or demonstrate your knowledge when it comes to exams; you really need to secure a top grade to get into your dream university or next step. 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Learn what capacitance is, how capacitors behave when charging and discharging, and how they\u2019re used in a wide range of applications from smoothing signals to timing functions.Key Concepts From Leyden Jar to Modern Capacitors The Leyden Jar in 1746 can be considered [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"nf_dc_page":"","_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-261","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>6.1 Capacitors - Dr P 4 Physics<\/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:\/\/doctorp4physics.co.uk\/es\/capacitors\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"6.1 Capacitors - Dr P 4 Physics\" \/>\n<meta property=\"og:description\" content=\"TopicCapacitors Explore how these essential electrical components store charge and energy in circuits. 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