{"id":46893,"date":"2024-04-15T22:19:00","date_gmt":"2024-04-15T22:19:00","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=46893"},"modified":"2024-04-15T22:19:00","modified_gmt":"2024-04-15T22:19:00","slug":"a-heater-is-rated-as-230-v-10-kw","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/a-heater-is-rated-as-230-v-10-kw\/","title":{"rendered":"A heater is rated as 230 V, 10 kW,"},"content":{"rendered":"<p>[amp_mcq option1=&#8221;Average voltage&#8221; option2=&#8221;r.m.s. voltage&#8221; option3=&#8221;The value 230 V refers to A. Average voltage B. r.m.s. voltage C. Peak voltage&#8221; option4=&#8221;None of the above&#8221; correct=&#8221;option2&#8243;]<!--more--><\/p>\n<p>The correct answer is: B. r.m.s. voltage<\/p>\n<p>The r.m.s. voltage is the effective voltage of an alternating current (AC) waveform. It is the value of a direct current (DC) that would produce the same heating effect in a resistor as the AC waveform.<\/p>\n<p>The peak voltage is the maximum voltage of an AC waveform. It is the voltage that occurs when the waveform is at its positive or negative peak.<\/p>\n<p>The average voltage of an AC waveform is the average of the positive and negative half-cycles. It is always less than the r.m.s. voltage.<\/p>\n<p>In the case of a 230 V, 10 kW heater, the r.m.s. voltage is 230 V. This means that if a 10 kW resistor were connected to a 230 V DC supply, it would dissipate the same amount of power as the heater does when connected to a 230 V AC supply.<\/p>\n<p>The peak voltage of the AC supply is 325 V. This is because the peak voltage of a sine wave is equal to its r.m.s. voltage multiplied by the square root of 2.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[amp_mcq option1=&#8221;Average voltage&#8221; option2=&#8221;r.m.s. voltage&#8221; option3=&#8221;The value 230 V refers to A. Average voltage B. r.m.s. voltage C. Peak voltage&#8221; option4=&#8221;None of the above&#8221; correct=&#8221;option2&#8243;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[739],"tags":[],"class_list":["post-46893","post","type-post","status-publish","format-standard","hentry","category-a-c-fundamentals-circuits-and-circuit-theory","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 heater is rated as 230 V, 10 kW,<\/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-heater-is-rated-as-230-v-10-kw\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A heater is rated as 230 V, 10 kW,\" \/>\n<meta property=\"og:description\" content=\"[amp_mcq option1=&#8221;Average voltage&#8221; option2=&#8221;r.m.s. voltage&#8221; option3=&#8221;The value 230 V refers to A. 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