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Mr. Dubey • 52.63K Points
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Q.   devices were used for voltage control applications.

(A) cycloconverters
(B) vacuum tubes
(C) tap changing transformer
(D) induction machine
  • Correct Answer - Option(C)
  • Views: 704
  • Filed under category Electrical Drives and Controls (EDC)
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Explanation by: Mr. Dubey
 a tap changing transformer can give variable ac from fixed ac without a change in frequency.

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