{"id":53519,"date":"2024-04-15T23:55:09","date_gmt":"2024-04-15T23:55:09","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=53519"},"modified":"2024-04-15T23:55:09","modified_gmt":"2024-04-15T23:55:09","slug":"in-an-amplifier-the-coupling-capacitors-are-employed-for","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/in-an-amplifier-the-coupling-capacitors-are-employed-for\/","title":{"rendered":"In an amplifier, the coupling capacitors are employed for"},"content":{"rendered":"<p>[amp_mcq option1=&#8221;Limiting the bandwidth&#8221; option2=&#8221;Matching the impedance&#8221; option3=&#8221;Preventing of Dc mixing with input or output&#8221; option4=&#8221;Controlling the output&#8221; correct=&#8221;option3&#8243;]<!--more--><\/p>\n<p>The correct answer is: <strong>C. Preventing of Dc mixing with input or output<\/strong>.<\/p>\n<p>Coupling capacitors are used in amplifiers to prevent DC mixing with the input or output signal. This is important because DC can cause distortion in the amplified signal. Coupling capacitors block DC signals while allowing AC signals to pass through. This is because capacitors have high impedance to DC signals and low impedance to AC signals.<\/p>\n<p>Option A is incorrect because coupling capacitors do not limit the bandwidth of an amplifier. The bandwidth of an amplifier is determined by the frequency response of the amplifier&#8217;s active components.<\/p>\n<p>Option B is incorrect because coupling capacitors do not match the impedance of an amplifier. The impedance of an amplifier is determined by the impedance of the load connected to the amplifier&#8217;s output.<\/p>\n<p>Option D is incorrect because coupling capacitors do not control the output of an amplifier. The output of an amplifier is controlled by the amplifier&#8217;s gain.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[amp_mcq option1=&#8221;Limiting the bandwidth&#8221; option2=&#8221;Matching the impedance&#8221; option3=&#8221;Preventing of Dc mixing with input or output&#8221; option4=&#8221;Controlling the output&#8221; correct=&#8221;option3&#8243;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[740],"tags":[],"class_list":["post-53519","post","type-post","status-publish","format-standard","hentry","category-electronics-and-instrumentation","no-featured-image-padding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>In an amplifier, the coupling capacitors are employed for<\/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:\/\/exam.pscnotes.com\/mcq\/in-an-amplifier-the-coupling-capacitors-are-employed-for\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"In an amplifier, the coupling capacitors are employed for\" \/>\n<meta property=\"og:description\" content=\"[amp_mcq option1=&#8221;Limiting the bandwidth&#8221; 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