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Question

When a current of 100 mA is passed through a galvanometer, it gives a full deflection of 100 divisions . If resistance of galvanometer is 500 Ω, calculate its voltage semitivity.

A
4 div/V
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B
2 div/V
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C
1 div/V
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D
0.2 div/V
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Solution

The correct option is B 2 div/V
Full deflection voltage is given by, Vg=Ig.G

Vg=(100×103)×500=50 V

Voltage senritivity, Vs=θmaxVg

Vs=10050=2 div/V

Hence, option (B) is the correct answer.

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