A moving coil galvanometer has resistance 50 Ω and it indicates full deflection at 4 m A current. A voltmeter is made using this galvanometer and a 5 k Ω resistance. The maximum voltage, that can be measured using this voltmeter, will be close to:

Question

A moving coil galvanometer has resistance 50 Ω and it indicates full deflection at 4 m A current. A voltmeter is made using this galvanometer and a 5 k Ω resistance. The maximum voltage, that can be measured using this voltmeter, will be close to:, 40 V, 15 V, 20 V, 10 V

MARKS App · Accepted Answer

V m a x = 4 × 10 - 3 × 50 + 4 × 10 - 3 × 5 × 10 3 V m a x = 20.2 V

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