{"id":55903,"date":"2024-04-16T00:35:23","date_gmt":"2024-04-16T00:35:23","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=55903"},"modified":"2024-04-16T00:35:23","modified_gmt":"2024-04-16T00:35:23","slug":"which-one-of-the-following-does-not-have-negative-temperature-coefficient","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-does-not-have-negative-temperature-coefficient\/","title":{"rendered":"Which one of the following does not have negative temperature coefficient?"},"content":{"rendered":"<p>[amp_mcq option1=&#8221;Aluminium&#8221; option2=&#8221;Paper&#8221; option3=&#8221;Rubber&#8221; option4=&#8221;Mica&#8221; correct=&#8221;option1&#8243;]<!--more--><\/p>\n<p>The correct answer is: <strong>Aluminium<\/strong>.<\/p>\n<p>Aluminium has a positive temperature coefficient, which means that its resistance increases with increasing temperature. This is because the resistance of a conductor is inversely proportional to its resistivity, and the resistivity of aluminium increases with increasing temperature.<\/p>\n<p>Paper, rubber, and mica all have negative temperature coefficients, which means that their resistance decreases with increasing temperature. This is because the resistance of an insulator is proportional to its resistivity, and the resistivity of these materials decreases with increasing temperature.<\/p>\n<p>In conclusion, aluminium is the only material listed that does not have a negative temperature coefficient.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[amp_mcq option1=&#8221;Aluminium&#8221; option2=&#8221;Paper&#8221; option3=&#8221;Rubber&#8221; option4=&#8221;Mica&#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":[948],"tags":[],"class_list":["post-55903","post","type-post","status-publish","format-standard","hentry","category-current-electricity","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>Which one of the following does not have negative temperature coefficient?<\/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\/which-one-of-the-following-does-not-have-negative-temperature-coefficient\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which one of the following does not have negative temperature coefficient?\" \/>\n<meta property=\"og:description\" content=\"[amp_mcq option1=&#8221;Aluminium&#8221; 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