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A galvanometer can withstand safely a ma...

A galvanometer can withstand safely a maximum current of 5 mA. If is converted into voltmeter readding upto 20 V by connecting in series an external resistance of `3960 Omega`. The resistance of galvanometer is

A

36 `Omega`

B

40 `Omega`

C

44 `Omega`

D

48 `Omega`

Text Solution

Verified by Experts

The correct Answer is:
B
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TARGET PUBLICATION-MAGNETIC EFFECT OF ELECTRIC CURRENT-CRITICAL THINKING
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