What is the unit of electric flux density D?<\/p>\n\n\n\n
The Correct Answer and Explanation is :<\/strong><\/mark><\/p>\n\n\n\n The unit of electric flux density ( \\mathbf{D} ) is the coulomb per square meter (C\/m\u00b2)<\/strong> in the International System of Units (SI).<\/p>\n\n\n\n Electric flux density, also known as the electric displacement field<\/strong>, is a vector field that represents the distribution of electric charge in a material, especially in the presence of dielectric materials. It describes how electric field lines are distributed through space, and it accounts for both the free charge in a material and the polarization due to bound charges.<\/p>\n\n\n\n Mathematically, the electric flux density ( \\mathbf{D} ) is defined as:<\/p>\n\n\n\n [ where:<\/p>\n\n\n\n In SI units:<\/p>\n\n\n\n In vacuum, the electric flux density ( \\mathbf{D} ) is related to the electric field ( \\mathbf{E} ) by the permittivity of free space ( \\epsilon_0 ) (approximately ( 8.85 \\times 10^{-12} \\, \\text{C}^2\/\\text{N\u00b7m}^2 )).<\/p>\n\n\n\n When there is no material (vacuum), the electric flux density is simply proportional to the electric field:<\/p>\n\n\n\n [ Thus, since ( \\mathbf{E} ) is measured in N\/C and ( \\epsilon_0 ) is in C\u00b2\/N\u00b7m\u00b2, the electric flux density ( \\mathbf{D} ) has the unit of C\/m\u00b2.<\/p>\n\n\n\n This unit makes sense because it describes how much charge is “flowing” through a given area per unit time.<\/p>\n","protected":false},"excerpt":{"rendered":" What is the unit of electric flux density D? The Correct Answer and Explanation is : The unit of electric flux density ( \\mathbf{D} ) is the coulomb per square meter (C\/m\u00b2) in the International System of Units (SI). Explanation: Electric flux density, also known as the electric displacement field, is a vector field that […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-191935","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/191935","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=191935"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/191935\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=191935"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=191935"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=191935"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Explanation:<\/h3>\n\n\n\n
\\mathbf{D} = \\epsilon_0 \\mathbf{E} + \\mathbf{P}
]<\/p>\n\n\n\n\n
\n
\\mathbf{D} = \\epsilon_0 \\mathbf{E}
]<\/p>\n\n\n\n