{"id":87438,"date":"2025-06-01T06:44:12","date_gmt":"2025-06-01T06:44:12","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=87438"},"modified":"2025-06-01T06:44:12","modified_gmt":"2025-06-01T06:44:12","slug":"which-one-of-the-following-devices-changes-low-voltage-alternating-cur","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-devices-changes-low-voltage-alternating-cur\/","title":{"rendered":"Which one of the following devices changes low voltage alternating cur"},"content":{"rendered":"

Which one of the following devices changes low voltage alternating current to high voltage alternating current and vice versa ?<\/p>\n

[amp_mcq option1=”Generator” option2=”Motor” option3=”Transformer” option4=”Vibrator” correct=”option3″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC NDA-1 – 2017<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe device that changes low voltage alternating current to high voltage alternating current and vice versa is a transformer. Transformers operate based on electromagnetic induction and are designed to step up (increase) or step down (decrease) AC voltage while changing the current proportionally. They require an alternating current to function.
\n<\/section>\n
\n– Transformers use electromagnetic induction to change AC voltage and current levels.
\n– Step-up transformers increase voltage and decrease current.
\n– Step-down transformers decrease voltage and increase current.
\n– Transformers only work with alternating current (AC).
\n<\/section>\n
\nGenerators produce electrical energy. Motors convert electrical energy to mechanical energy. Vibrators are often used in older circuits to convert DC to pulsed DC or AC before it can be stepped up by a transformer, but the primary voltage conversion is done by the transformer.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one of the following devices changes low voltage alternating current to high voltage alternating current and vice versa ? [amp_mcq option1=”Generator” option2=”Motor” option3=”Transformer” option4=”Vibrator” correct=”option3″] This question was previously asked in UPSC NDA-1 – 2017 Download PDFAttempt Online The device that changes low voltage alternating current to high voltage alternating current and vice versa … <\/p>\n

Detailed SolutionWhich one of the following devices changes low voltage alternating cur<\/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":[1101,1201,1128],"class_list":["post-87438","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-1","tag-1101","tag-electric-current","tag-physics","no-featured-image-padding"],"yoast_head":"\nWhich one of the following devices changes low voltage alternating cur<\/title>\n<meta name=\"description\" content=\"The device that changes low voltage alternating current to high voltage alternating current and vice versa is a transformer. Transformers operate based on electromagnetic induction and are designed to step up (increase) or step down (decrease) AC voltage while changing the current proportionally. They require an alternating current to function. - Transformers use electromagnetic induction to change AC voltage and current levels. - Step-up transformers increase voltage and decrease current. - Step-down transformers decrease voltage and increase current. - Transformers only work with alternating current (AC).\" \/>\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-devices-changes-low-voltage-alternating-cur\/\" \/>\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 devices changes low voltage alternating cur\" \/>\n<meta property=\"og:description\" content=\"The device that changes low voltage alternating current to high voltage alternating current and vice versa is a transformer. Transformers operate based on electromagnetic induction and are designed to step up (increase) or step down (decrease) AC voltage while changing the current proportionally. They require an alternating current to function. - Transformers use electromagnetic induction to change AC voltage and current levels. - Step-up transformers increase voltage and decrease current. - Step-down transformers decrease voltage and increase current. - Transformers only work with alternating current (AC).\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-devices-changes-low-voltage-alternating-cur\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T06:44:12+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 devices changes low voltage alternating cur","description":"The device that changes low voltage alternating current to high voltage alternating current and vice versa is a transformer. 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