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Galvanometer

The restoring...

Question

The restoring couple in the moving coil galvanometer is due to

A

current in the coil

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B

magnetic field of the magnet.

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C

material of the coil.

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D

twist produced in the suspension wire.

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Solution

The correct option is D twist produced in the suspension wire.
When coil rotates the spring is twisted and it exerts an opposing torque on the coil.

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