{"id":87538,"date":"2025-06-01T06:47:12","date_gmt":"2025-06-01T06:47:12","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=87538"},"modified":"2025-06-01T06:47:12","modified_gmt":"2025-06-01T06:47:12","slug":"which-one-of-the-following-is-the-value-of-1-kwh-of-energy-converted-i","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-value-of-1-kwh-of-energy-converted-i\/","title":{"rendered":"Which one of the following is the value of 1 kWh of energy converted i"},"content":{"rendered":"

Which one of the following is the value of 1 kWh of energy converted into joules ?<\/p>\n

[amp_mcq option1=”1.8 \u00d7 10\u2076 J” option2=”3.6 \u00d7 10\u2076 J” option3=”6.0 \u00d7 10\u2076 J” option4=”7.2 \u00d7 10\u2076 J” correct=”option2″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC NDA-1 – 2018<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\n1 kWh is a unit of energy commonly used for electrical energy consumption. It stands for kilowatt-hour. To convert it to joules (the SI unit of energy), we need to convert the power unit (kW) to watts (W) and the time unit (hour) to seconds (s).
\n1 kilowatt (kW) = 1000 Watts (W)
\n1 hour (h) = 60 minutes * 60 seconds = 3600 seconds (s)
\nEnergy (E) = Power (P) \u00d7 Time (t)
\n1 kWh = 1 kW \u00d7 1 h = (1000 W) \u00d7 (3600 s) = 3,600,000 Ws
\nSince 1 Watt-second (Ws) is equal to 1 Joule (J),
\n1 kWh = 3,600,000 J = 3.6 \u00d7 10\u2076 J.
\n<\/section>\n
\n– kWh is a unit of energy, not power.
\n– 1 Watt = 1 Joule per second (1 W = 1 J\/s).
\n– 1 kilowatt = 1000 Watts.
\n– 1 hour = 3600 seconds.
\n<\/section>\n
\nJoules are the standard SI unit for energy. kWh is a practical unit for measuring large amounts of energy, like electricity consumption in households or industries. Power is the rate at which energy is consumed or transferred; 1 Watt is 1 Joule per second.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one of the following is the value of 1 kWh of energy converted into joules ? [amp_mcq option1=”1.8 \u00d7 10\u2076 J” option2=”3.6 \u00d7 10\u2076 J” option3=”6.0 \u00d7 10\u2076 J” option4=”7.2 \u00d7 10\u2076 J” correct=”option2″] This question was previously asked in UPSC NDA-1 – 2018 Download PDFAttempt Online 1 kWh is a unit of energy … <\/p>\n

Detailed SolutionWhich one of the following is the value of 1 kWh of energy converted i<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1093],"tags":[1114,1140,1128],"class_list":["post-87538","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-1","tag-1114","tag-measurement-unit","tag-physics","no-featured-image-padding"],"yoast_head":"\nWhich one of the following is the value of 1 kWh of energy converted i<\/title>\n<meta name=\"description\" content=\"1 kWh is a unit of energy commonly used for electrical energy consumption. It stands for kilowatt-hour. To convert it to joules (the SI unit of energy), we need to convert the power unit (kW) to watts (W) and the time unit (hour) to seconds (s). 1 kilowatt (kW) = 1000 Watts (W) 1 hour (h) = 60 minutes * 60 seconds = 3600 seconds (s) Energy (E) = Power (P) \u00d7 Time (t) 1 kWh = 1 kW \u00d7 1 h = (1000 W) \u00d7 (3600 s) = 3,600,000 Ws Since 1 Watt-second (Ws) is equal to 1 Joule (J), 1 kWh = 3,600,000 J = 3.6 \u00d7 10\u2076 J. - kWh is a unit of energy, not power. - 1 Watt = 1 Joule per second (1 W = 1 J\/s). - 1 kilowatt = 1000 Watts. - 1 hour = 3600 seconds.\" \/>\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-is-the-value-of-1-kwh-of-energy-converted-i\/\" \/>\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 is the value of 1 kWh of energy converted i\" \/>\n<meta property=\"og:description\" content=\"1 kWh is a unit of energy commonly used for electrical energy consumption. It stands for kilowatt-hour. To convert it to joules (the SI unit of energy), we need to convert the power unit (kW) to watts (W) and the time unit (hour) to seconds (s). 1 kilowatt (kW) = 1000 Watts (W) 1 hour (h) = 60 minutes * 60 seconds = 3600 seconds (s) Energy (E) = Power (P) \u00d7 Time (t) 1 kWh = 1 kW \u00d7 1 h = (1000 W) \u00d7 (3600 s) = 3,600,000 Ws Since 1 Watt-second (Ws) is equal to 1 Joule (J), 1 kWh = 3,600,000 J = 3.6 \u00d7 10\u2076 J. - kWh is a unit of energy, not power. - 1 Watt = 1 Joule per second (1 W = 1 J\/s). - 1 kilowatt = 1000 Watts. - 1 hour = 3600 seconds.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-value-of-1-kwh-of-energy-converted-i\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T06:47:12+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=\"1 minute\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Which one of the following is the value of 1 kWh of energy converted i","description":"1 kWh is a unit of energy commonly used for electrical energy consumption. It stands for kilowatt-hour. To convert it to joules (the SI unit of energy), we need to convert the power unit (kW) to watts (W) and the time unit (hour) to seconds (s). 1 kilowatt (kW) = 1000 Watts (W) 1 hour (h) = 60 minutes * 60 seconds = 3600 seconds (s) Energy (E) = Power (P) \u00d7 Time (t) 1 kWh = 1 kW \u00d7 1 h = (1000 W) \u00d7 (3600 s) = 3,600,000 Ws Since 1 Watt-second (Ws) is equal to 1 Joule (J), 1 kWh = 3,600,000 J = 3.6 \u00d7 10\u2076 J. - kWh is a unit of energy, not power. - 1 Watt = 1 Joule per second (1 W = 1 J\/s). - 1 kilowatt = 1000 Watts. - 1 hour = 3600 seconds.","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\/which-one-of-the-following-is-the-value-of-1-kwh-of-energy-converted-i\/","og_locale":"en_US","og_type":"article","og_title":"Which one of the following is the value of 1 kWh of energy converted i","og_description":"1 kWh is a unit of energy commonly used for electrical energy consumption. It stands for kilowatt-hour. To convert it to joules (the SI unit of energy), we need to convert the power unit (kW) to watts (W) and the time unit (hour) to seconds (s). 1 kilowatt (kW) = 1000 Watts (W) 1 hour (h) = 60 minutes * 60 seconds = 3600 seconds (s) Energy (E) = Power (P) \u00d7 Time (t) 1 kWh = 1 kW \u00d7 1 h = (1000 W) \u00d7 (3600 s) = 3,600,000 Ws Since 1 Watt-second (Ws) is equal to 1 Joule (J), 1 kWh = 3,600,000 J = 3.6 \u00d7 10\u2076 J. - kWh is a unit of energy, not power. - 1 Watt = 1 Joule per second (1 W = 1 J\/s). - 1 kilowatt = 1000 Watts. - 1 hour = 3600 seconds.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-value-of-1-kwh-of-energy-converted-i\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T06:47:12+00:00","author":"rawan239","twitter_card":"summary_large_image","twitter_misc":{"Written by":"rawan239","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-value-of-1-kwh-of-energy-converted-i\/","url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-value-of-1-kwh-of-energy-converted-i\/","name":"Which one of the following is the value of 1 kWh of energy converted i","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T06:47:12+00:00","dateModified":"2025-06-01T06:47:12+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"1 kWh is a unit of energy commonly used for electrical energy consumption. It stands for kilowatt-hour. To convert it to joules (the SI unit of energy), we need to convert the power unit (kW) to watts (W) and the time unit (hour) to seconds (s). 1 kilowatt (kW) = 1000 Watts (W) 1 hour (h) = 60 minutes * 60 seconds = 3600 seconds (s) Energy (E) = Power (P) \u00d7 Time (t) 1 kWh = 1 kW \u00d7 1 h = (1000 W) \u00d7 (3600 s) = 3,600,000 Ws Since 1 Watt-second (Ws) is equal to 1 Joule (J), 1 kWh = 3,600,000 J = 3.6 \u00d7 10\u2076 J. - kWh is a unit of energy, not power. - 1 Watt = 1 Joule per second (1 W = 1 J\/s). - 1 kilowatt = 1000 Watts. - 1 hour = 3600 seconds.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-value-of-1-kwh-of-energy-converted-i\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-value-of-1-kwh-of-energy-converted-i\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-value-of-1-kwh-of-energy-converted-i\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"UPSC NDA-1","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/upsc-nda-1\/"},{"@type":"ListItem","position":3,"name":"Which one of the following is the value of 1 kWh of energy converted i"}]},{"@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\/87538","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=87538"}],"version-history":[{"count":0,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/87538\/revisions"}],"wp:attachment":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/media?parent=87538"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/categories?post=87538"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/tags?post=87538"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}