{"id":191704,"date":"2021-09-14T01:48:13","date_gmt":"2021-09-14T01:48:13","guid":{"rendered":"\/forum\/forums\/reply\/191704\/"},"modified":"2021-09-14T01:49:13","modified_gmt":"2021-09-14T01:49:13","slug":"191704","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/191704\/","title":{"rendered":"Reply To: Self-resonant frequency of an inductor"},"content":{"rendered":"<p>The equivalent circuit is WRONG. I do not know how long that ignorance from 19th century will continue replicating. The capacitance grows with the coil length, and in the circuit it decreases. The capacitance is a multi-dimentional solution of Maxwell equations and can not be approximated simply by wire layers. At RF it may be approximated in cylindrical coordinates through the wave equation with periodic boundary conditions. But the good solution requires FEM simulation.<\/p>\n","protected":false},"template":"","class_list":["post-191704","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"The equivalent circuit is WRONG. I do not know how long that ignorance from 19th century will continue replicating. The capacitance grows with the coil length, and in the circuit it decreases. The capacitance is a multi-dimentional solution of Maxwell equations and can not be approximated simply by wire layers. At RF it may be\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/191704\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Ansys Learning Forum | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Reply To: Self-resonant frequency of an inductor | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"The equivalent circuit is WRONG. I do not know how long that ignorance from 19th century will continue replicating. The capacitance grows with the coil length, and in the circuit it decreases. The capacitance is a multi-dimentional solution of Maxwell equations and can not be approximated simply by wire layers. At RF it may be\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/191704\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2021-09-14T01:48:13+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2021-09-14T01:49:13+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: Self-resonant frequency of an inductor | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"The equivalent circuit is WRONG. I do not know how long that ignorance from 19th century will continue replicating. The capacitance grows with the coil length, and in the circuit it decreases. The capacitance is a multi-dimentional solution of Maxwell equations and can not be approximated simply by wire layers. At RF it may be\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/191704\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/191704\\\/#listItem\",\"name\":\"Reply To: Self-resonant frequency of an inductor\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/191704\\\/#listItem\",\"position\":2,\"name\":\"Reply To: Self-resonant frequency of an inductor\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#organization\",\"name\":\"Ansys Learning Forum\",\"description\":\"Ansys Innovation Space\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/191704\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/191704\\\/\",\"name\":\"Reply To: Self-resonant frequency of an inductor | Ansys Learning Forum\",\"description\":\"The equivalent circuit is WRONG. I do not know how long that ignorance from 19th century will continue replicating. The capacitance grows with the coil length, and in the circuit it decreases. The capacitance is a multi-dimentional solution of Maxwell equations and can not be approximated simply by wire layers. 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The capacitance grows with the coil length, and in the circuit it decreases. The capacitance is a multi-dimentional solution of Maxwell equations and can not be approximated simply by wire layers. 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I do not know how long that ignorance from 19th century will continue replicating. The capacitance grows with the coil length, and in the circuit it decreases. The capacitance is a multi-dimentional solution of Maxwell equations and can not be approximated simply by wire layers. 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The capacitance grows with the coil length, and in the circuit it decreases. The capacitance is a multi-dimentional solution of Maxwell equations and can not be approximated simply by wire layers. At RF it may be","og:url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/191704\/","article:published_time":"2021-09-14T01:48:13+00:00","article:modified_time":"2021-09-14T01:49:13+00:00","twitter:card":"summary_large_image","twitter:title":"Reply To: Self-resonant frequency of an inductor | Ansys Learning Forum","twitter:description":"The equivalent circuit is WRONG. I do not know how long that ignorance from 19th century will continue replicating. The capacitance grows with the coil length, and in the circuit it decreases. The capacitance is a multi-dimentional solution of Maxwell equations and can not be approximated simply by wire layers. At RF it may be"},"aioseo_meta_data":{"post_id":"191704","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"content","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":true,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"limit_modified_date":false,"created":"2024-10-24 15:51:39","updated":"2026-09-05 19:43:18","ai":null,"breadcrumb_settings":null,"seo_analyzer_scan_date":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/forum\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tReply To: Self-resonant frequency of an inductor\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/innovationspace.ansys.com\/forum"},{"label":"Reply To: Self-resonant frequency of an inductor","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/191704\/"}],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/191704","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/reply"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/191704\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=191704"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}