{"id":156077,"date":"2023-08-29T11:27:16","date_gmt":"2023-08-29T05:57:16","guid":{"rendered":"https:\/\/www.gkseries.com\/blog\/?p=156077"},"modified":"2023-08-29T11:27:20","modified_gmt":"2023-08-29T05:57:20","slug":"four-strain-gauges-in-a-wheatstone-bridge-configuration-are-connected-to-an-instrumentation-amplifier-as-shown-in-the-figure-from-the-choices-given-below","status":"publish","type":"post","link":"https:\/\/www.gkseries.com\/blog\/four-strain-gauges-in-a-wheatstone-bridge-configuration-are-connected-to-an-instrumentation-amplifier-as-shown-in-the-figure-from-the-choices-given-below\/","title":{"rendered":"Four strain gauges in a Wheatstone bridge configuration are connected to an instrumentation amplifier as shown in the figure. From the choices given below"},"content":{"rendered":"\n<p>Q. Four strain gauges in a Wheatstone bridge configuration are connected to an instrumentation amplifier as shown in the figure. From the choices given below, the preferred value for the common mode rejection ratio (CMRR) of the amplifier, in dB, would be<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/www.gkseries.com\/blog\/wp-content\/uploads\/2023\/08\/image-30.png\" alt=\"\" class=\"wp-image-156078\" style=\"width:367px;height:194px\" width=\"367\" height=\"194\" srcset=\"https:\/\/www.gkseries.com\/blog\/wp-content\/uploads\/2023\/08\/image-30.png 725w, https:\/\/www.gkseries.com\/blog\/wp-content\/uploads\/2023\/08\/image-30-300x159.png 300w\" sizes=\"(max-width: 367px) 100vw, 367px\" \/><\/figure>\n\n\n\n<p>Ans: 100<\/p>\n\n\n\n<p>Sol:<\/p>\n\n\n\n<p>CMRR of an amplifier is given by     <\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"121\" height=\"41\" src=\"https:\/\/www.gkseries.com\/blog\/wp-content\/uploads\/2023\/08\/image-31.png\" alt=\"\" class=\"wp-image-156079\"\/><\/figure>\n\n\n\n<p>Where A<sub>d<\/sub> is differential mode gain  <\/p>\n\n\n\n<p>A<sub>CM<\/sub> is common mode gain.  <\/p>\n\n\n\n<p>For an ideal instrumentation amplifier CMRR is infinity but practically it is very large.     <\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"194\" height=\"41\" src=\"https:\/\/www.gkseries.com\/blog\/wp-content\/uploads\/2023\/08\/image-32.png\" alt=\"\" class=\"wp-image-156080\"\/><\/figure>\n\n\n\n<p>From the given options, 100 dB is the most proffered value.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Q. Four strain gauges in a Wheatstone bridge configuration are connected to an instrumentation amplifier as shown in the figure. From the choices given below, the preferred value for the common mode rejection ratio (CMRR) of the amplifier, in dB, would be Ans: 100 Sol: CMRR of an amplifier is given by Where Ad is [&hellip;]<\/p>\n","protected":false},"author":419,"featured_media":0,"comment_status":"open","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-4)","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-4)","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-4)","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":[5141],"tags":[5140],"class_list":["post-156077","post","type-post","status-publish","format-standard","hentry","category-gate","tag-gate-questions"],"_links":{"self":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts\/156077","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/users\/419"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/comments?post=156077"}],"version-history":[{"count":1,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts\/156077\/revisions"}],"predecessor-version":[{"id":156082,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts\/156077\/revisions\/156082"}],"wp:attachment":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/media?parent=156077"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/categories?post=156077"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/tags?post=156077"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}