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Galvanometer

Sensitivity o...

Question

Sensitivity of a moving coil galvanometer can be increased by _____________. Fill in the blank.

A

decreasing number of turns in rectangular coil

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B

decreasing magnetic induction of magnetic field

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C

increasing area of rectangular coil

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D

increasing twist constant of phosphor bronze fiber

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Solution

The correct option is D increasing area of rectangular coil
Sensitivity is directly proportional to area of the coil, number or truns, current and magnetic field. So, it can be increased by increasing the area of the rectangular coil.

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