Question

answer in point wise n galvanometer device ​

Answer 1

Galvanometer is the historical name given to a moving coil electric current detector.

When a current is passed through a coil in a magnetic field, the coil experiences a torque proportional to the current.

If the coil's movement is opposed by a coil spring, then the amount of deflection of a needle attached to the coil may be proportional to the current passing through the coil.

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