{"id":59325,"date":"2024-04-16T01:35:10","date_gmt":"2024-04-16T01:35:10","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=59325"},"modified":"2024-04-16T01:35:10","modified_gmt":"2024-04-16T01:35:10","slug":"a-no-load-test-is-performed-on-a-transformer-to-determine","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/a-no-load-test-is-performed-on-a-transformer-to-determine\/","title":{"rendered":"A no-load test is performed on a transformer to determine"},"content":{"rendered":"<p>[amp_mcq option1=&#8221;core loss&#8221; option2=&#8221;copper loss&#8221; option3=&#8221;efficiency&#8221; option4=&#8221;magnetising current E. magnetising current and loss&#8221; correct=&#8221;option4&#8243;]<!--more--><\/p>\n<p>The correct answer is: <strong>D. magnetising current<\/strong><\/p>\n<p>A no-load test is performed on a transformer to determine the magnetising current. The magnetising current is the current that flows through the transformer&#8217;s core when there is no load on the secondary winding. The magnetising current is responsible for creating the magnetic field that induces a voltage in the secondary winding.<\/p>\n<p>The other options are incorrect because:<\/p>\n<ul>\n<li>Core loss is the power loss that occurs in the transformer&#8217;s core due to eddy currents and hysteresis. Core loss is determined by a short-circuit test.<\/li>\n<li>Copper loss is the power loss that occurs in the transformer&#8217;s windings due to the resistance of the wire. Copper loss is determined by an open-circuit test.<\/li>\n<li>Efficiency is the ratio of the output power of a transformer to the input power. Efficiency is determined by a load test.<\/li>\n<\/ul>\n<p>I hope this helps! Let me know if you have any other questions.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[amp_mcq option1=&#8221;core loss&#8221; option2=&#8221;copper loss&#8221; option3=&#8221;efficiency&#8221; option4=&#8221;magnetising current E. magnetising current and loss&#8221; correct=&#8221;option4&#8243;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[960],"tags":[],"class_list":["post-59325","post","type-post","status-publish","format-standard","hentry","category-transformers","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>A no-load test is performed on a transformer to determine<\/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\/a-no-load-test-is-performed-on-a-transformer-to-determine\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A no-load test is performed on a transformer to determine\" \/>\n<meta property=\"og:description\" content=\"[amp_mcq option1=&#8221;core loss&#8221; 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