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To increase the current sensitivity of a...

To increase the current sensitivity of a moving coil galvanometer by `50%` its resistance is increased so that the new resistance becomes twice its initial resistance. By what factor does its voltage sensitivity change?

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To solve the problem, we need to analyze how the current sensitivity and voltage sensitivity of a moving coil galvanometer are affected by changes in resistance and current. ### Step-by-Step Solution: 1. **Understanding Current Sensitivity**: The current sensitivity (S_I) of a galvanometer is defined as the deflection per unit current. If the current sensitivity is increased by 50%, we can express this mathematically: \[ S_{I2} = S_I + 0.5 S_I = 1.5 S_I ...
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