{"id":46733,"date":"2024-04-15T22:16:37","date_gmt":"2024-04-15T22:16:37","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=46733"},"modified":"2024-04-15T22:16:37","modified_gmt":"2024-04-15T22:16:37","slug":"if-the-supply-voltage-for-a-d-c-motor-is-increased-which-of-the-following-will-decrease","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/if-the-supply-voltage-for-a-d-c-motor-is-increased-which-of-the-following-will-decrease\/","title":{"rendered":"If the supply voltage for a D.C. motor is increased, which of the following will decrease?"},"content":{"rendered":"<p>[amp_mcq option1=&#8221;Starting torque&#8221; option2=&#8221;Operating speed&#8221; option3=&#8221;motor is increased, which of the following will decrease? A. Starting torque B. Operating speed C. Full-load current&#8221; option4=&#8221;All of the above&#8221; correct=&#8221;option4&#8243;]<!--more--><\/p>\n<p>The correct answer is: <strong>D. All of the above<\/strong><\/p>\n<p>When the supply voltage for a D.C. motor is increased, the following will decrease:<\/p>\n<ul>\n<li>Starting torque: The starting torque of a D.C. motor is proportional to the square of the supply voltage. Therefore, if the supply voltage is increased, the starting torque will decrease.<\/li>\n<li>Operating speed: The operating speed of a D.C. motor is proportional to the supply voltage. Therefore, if the supply voltage is increased, the operating speed will decrease.<\/li>\n<li>Full-load current: The full-load current of a D.C. motor is proportional to the supply voltage. Therefore, if the supply voltage is increased, the full-load current will decrease.<\/li>\n<\/ul>\n<p>The following is a brief explanation of each option:<\/p>\n<ul>\n<li>Starting torque: The starting torque of a D.C. motor is the torque that the motor produces when it is first turned on. The starting torque is important because it determines how easily the motor can start and how much load it can carry when it is first turned on. The starting torque of a D.C. motor is proportional to the square of the supply voltage. Therefore, if the supply voltage is increased, the starting torque will decrease.<\/li>\n<li>Operating speed: The operating speed of a D.C. motor is the speed at which the motor runs when it is under load. The operating speed is important because it determines how fast the motor can turn and how much work it can do. The operating speed of a D.C. motor is proportional to the supply voltage. Therefore, if the supply voltage is increased, the operating speed will decrease.<\/li>\n<li>Full-load current: The full-load current of a D.C. motor is the current that the motor draws when it is running at full load. The full-load current is important because it determines how much power the motor needs and how much heat it will generate. The full-load current of a D.C. motor is proportional to the supply voltage. Therefore, if the supply voltage is increased, the full-load current will decrease.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>[amp_mcq option1=&#8221;Starting torque&#8221; option2=&#8221;Operating speed&#8221; option3=&#8221;motor is increased, which of the following will decrease? A. Starting torque B. Operating speed C. Full-load current&#8221; option4=&#8221;All of the above&#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":[743],"tags":[],"class_list":["post-46733","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 supply voltage for a D.C. motor is increased, which of the following will decrease?<\/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-supply-voltage-for-a-d-c-motor-is-increased-which-of-the-following-will-decrease\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"If the supply voltage for a D.C. motor is increased, which of the following will decrease?\" \/>\n<meta property=\"og:description\" content=\"[amp_mcq option1=&#8221;Starting torque&#8221; option2=&#8221;Operating speed&#8221; option3=&#8221;motor is increased, which of the following will decrease? A. Starting torque B. Operating speed C. Full-load current&#8221; option4=&#8221;All of the above&#8221; correct=&#8221;option4&#8243;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/if-the-supply-voltage-for-a-d-c-motor-is-increased-which-of-the-following-will-decrease\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2024-04-15T22:16:37+00:00\" \/>\n<meta name=\"author\" content=\"rawan239\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rawan239\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"If the supply voltage for a D.C. motor is increased, which of the following will decrease?","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/exam.pscnotes.com\/mcq\/if-the-supply-voltage-for-a-d-c-motor-is-increased-which-of-the-following-will-decrease\/","og_locale":"en_US","og_type":"article","og_title":"If the supply voltage for a D.C. motor is increased, which of the following will decrease?","og_description":"[amp_mcq option1=&#8221;Starting torque&#8221; option2=&#8221;Operating speed&#8221; option3=&#8221;motor is increased, which of the following will decrease? A. Starting torque B. Operating speed C. Full-load current&#8221; option4=&#8221;All of the above&#8221; correct=&#8221;option4&#8243;]","og_url":"https:\/\/exam.pscnotes.com\/mcq\/if-the-supply-voltage-for-a-d-c-motor-is-increased-which-of-the-following-will-decrease\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2024-04-15T22:16:37+00:00","author":"rawan239","twitter_card":"summary_large_image","twitter_misc":{"Written by":"rawan239","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/exam.pscnotes.com\/mcq\/if-the-supply-voltage-for-a-d-c-motor-is-increased-which-of-the-following-will-decrease\/","url":"https:\/\/exam.pscnotes.com\/mcq\/if-the-supply-voltage-for-a-d-c-motor-is-increased-which-of-the-following-will-decrease\/","name":"If the supply voltage for a D.C. motor is increased, which of the following will decrease?","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2024-04-15T22:16:37+00:00","dateModified":"2024-04-15T22:16:37+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/if-the-supply-voltage-for-a-d-c-motor-is-increased-which-of-the-following-will-decrease\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/if-the-supply-voltage-for-a-d-c-motor-is-increased-which-of-the-following-will-decrease\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/if-the-supply-voltage-for-a-d-c-motor-is-increased-which-of-the-following-will-decrease\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"mcq","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/mcq\/"},{"@type":"ListItem","position":3,"name":"Electrical engineering","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/mcq\/electrical-engineering\/"},{"@type":"ListItem","position":4,"name":"D.c. Motors","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/mcq\/electrical-engineering\/d-c-motors\/"},{"@type":"ListItem","position":5,"name":"If the supply voltage for a D.C. motor is increased, which of the following will decrease?"}]},{"@type":"WebSite","@id":"https:\/\/exam.pscnotes.com\/mcq\/#website","url":"https:\/\/exam.pscnotes.com\/mcq\/","name":"MCQ and Quiz for Exams","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/exam.pscnotes.com\/mcq\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209","name":"rawan239","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","caption":"rawan239"},"sameAs":["https:\/\/exam.pscnotes.com"],"url":"https:\/\/exam.pscnotes.com\/mcq\/author\/rawan239\/"}]}},"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/46733","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/comments?post=46733"}],"version-history":[{"count":0,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/46733\/revisions"}],"wp:attachment":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/media?parent=46733"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/categories?post=46733"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/tags?post=46733"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}