The resistance of a dc galvanometer is 20 Ω. A current of 10 mA causes full scale deflection ___

The resistance of a dc galvanometer is 20 Ω.

A current of 10 mA causes full scale deflection.

To convert it into 0-300 V voltmeter, we have to use a series resistance of

A. 30000 Ω
B. 29980 Ω
C. 6000 Ω
D. 15 Ω

Show Answer

Answer: B

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