Home JEE Main - Previous Year Papers JEE MAIN 2021 PAPER- 1 A common transistor radio set requires (D.C…
JEE Main - Previous Year Papers JEE MAIN 2021 PAPER- 1 Single Correct MCQ
Published on: August 12, 2026

A common transistor radio set requires (D.C.) for its operation. The D.C. source is constructed by using a transformer and a rectifier circuit, which are operated at (A.C.) on standard domestic A.C. supply. The number of turns of secondary coil are 24, then the number of turns of primary are

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The correct answer is:
440

(440) Given

Primary voltage,

Secondary voltage,

No. of turns in secondary coil is

no. of turns in primary coil, ?

We know that for a transformer

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