{"id":50597,"date":"2024-04-15T23:12:36","date_gmt":"2024-04-15T23:12:36","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=50597"},"modified":"2024-04-15T23:12:36","modified_gmt":"2024-04-15T23:12:36","slug":"if-the-speed-of-a-d-c-shunt-motor-is-increased-the-back-e-m-f-of-the-motor-will","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/if-the-speed-of-a-d-c-shunt-motor-is-increased-the-back-e-m-f-of-the-motor-will\/","title":{"rendered":"If the speed of a D.C. shunt motor is increased, the back e.m.f. of the motor will"},"content":{"rendered":"<p>[amp_mcq option1=&#8221;Increase&#8221; option2=&#8221;Decrease&#8221; option3=&#8221;shunt motor is increased, the back e.m.f. of the motor will A. Increase B. Decrease C. Remain same&#8221; option4=&#8221;Become zero&#8221; correct=&#8221;option1&#8243;]<!--more--><\/p>\n<p>The correct answer is A. Increase.<\/p>\n<p>The back EMF of a DC shunt motor is directly proportional to the speed of the motor. This is because the back EMF is generated by the magnetic field produced by the current flowing through the motor&#8217;s armature. The faster the motor rotates, the stronger the magnetic field, and the higher the back EMF.<\/p>\n<p>The other options are incorrect because:<\/p>\n<ul>\n<li>Option B: The back EMF does not decrease with increasing speed. In fact, it increases.<\/li>\n<li>Option C: The back EMF does not remain the same with increasing speed. It increases.<\/li>\n<li>Option D: The back EMF does not become zero with increasing speed. It increases.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>[amp_mcq option1=&#8221;Increase&#8221; option2=&#8221;Decrease&#8221; option3=&#8221;shunt motor is increased, the back e.m.f. of the motor will A. Increase B. Decrease C. Remain same&#8221; option4=&#8221;Become zero&#8221; correct=&#8221;option1&#8243;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[743],"tags":[],"class_list":["post-50597","post","type-post","status-publish","format-standard","hentry","category-d-c-motors","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>If the speed of a D.C. shunt motor is increased, the back e.m.f. of the motor will<\/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\/if-the-speed-of-a-d-c-shunt-motor-is-increased-the-back-e-m-f-of-the-motor-will\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"If the speed of a D.C. shunt motor is increased, the back e.m.f. of the motor will\" \/>\n<meta property=\"og:description\" content=\"[amp_mcq option1=&#8221;Increase&#8221; option2=&#8221;Decrease&#8221; option3=&#8221;shunt motor is increased, the back e.m.f. of the motor will A. 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