{"id":85376,"date":"2025-06-01T03:14:55","date_gmt":"2025-06-01T03:14:55","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=85376"},"modified":"2025-06-01T03:14:55","modified_gmt":"2025-06-01T03:14:55","slug":"the-r-m-s-potential-difference-between-the-red-live-wire-and-black-ne","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-r-m-s-potential-difference-between-the-red-live-wire-and-black-ne\/","title":{"rendered":"The r.m.s. potential difference between the red live wire and black ne"},"content":{"rendered":"

The r.m.s. potential difference between the red live wire and black neutral wire in Indian domestic electric supply is<\/p>\n

[amp_mcq option1=”160 V” option2=”220 V” option3=”300 V” option4=”410 V” correct=”option2″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC CDS-1 – 2023<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe standard r.m.s. (root mean square) voltage for domestic electric supply in India is 220 volts. This is the effective voltage that determines the power delivered to electrical appliances. The peak voltage is higher, approximately $220 \\times \\sqrt{2} \\approx 311$ volts.
\n<\/section>\n
\n– The voltage of AC power is usually specified by its r.m.s. value.
\n– The standard domestic supply voltage in India is 220-240 V AC at 50 Hz.
\n<\/section>\n
\nDifferent countries use different standard voltages and frequencies for domestic power supply (e.g., 120 V at 60 Hz in North America, 230 V at 50 Hz in much of Europe). The red wire is typically the live or phase wire, and the black wire is the neutral wire. The potential difference exists between the live and neutral wires.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

The r.m.s. potential difference between the red live wire and black neutral wire in Indian domestic electric supply is [amp_mcq option1=”160 V” option2=”220 V” option3=”300 V” option4=”410 V” correct=”option2″] This question was previously asked in UPSC CDS-1 – 2023 Download PDFAttempt Online The standard r.m.s. (root mean square) voltage for domestic electric supply in India … <\/p>\n

Detailed SolutionThe r.m.s. potential difference between the red live wire and black ne<\/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":[1087],"tags":[1105,1201,1128],"class_list":["post-85376","post","type-post","status-publish","format-standard","hentry","category-upsc-cds-1","tag-1105","tag-electric-current","tag-physics","no-featured-image-padding"],"yoast_head":"\nThe r.m.s. potential difference between the red live wire and black ne<\/title>\n<meta name=\"description\" content=\"The standard r.m.s. (root mean square) voltage for domestic electric supply in India is 220 volts. This is the effective voltage that determines the power delivered to electrical appliances. The peak voltage is higher, approximately $220 times sqrt{2} approx 311$ volts. - The voltage of AC power is usually specified by its r.m.s. value. - The standard domestic supply voltage in India is 220-240 V AC at 50 Hz.\" \/>\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\/the-r-m-s-potential-difference-between-the-red-live-wire-and-black-ne\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The r.m.s. potential difference between the red live wire and black ne\" \/>\n<meta property=\"og:description\" content=\"The standard r.m.s. (root mean square) voltage for domestic electric supply in India is 220 volts. This is the effective voltage that determines the power delivered to electrical appliances. The peak voltage is higher, approximately $220 times sqrt{2} approx 311$ volts. - The voltage of AC power is usually specified by its r.m.s. value. - The standard domestic supply voltage in India is 220-240 V AC at 50 Hz.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/the-r-m-s-potential-difference-between-the-red-live-wire-and-black-ne\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T03:14:55+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":"The r.m.s. potential difference between the red live wire and black ne","description":"The standard r.m.s. 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