Question

Q.22. Explain the construction and working of a moving
galvanometer​

Answer 1

1. Principle of Moving Coil Galvanometer

• Torque acts on a current-carrying coil suspended in the uniform magnetic field. Due to this, the coil rotates. Hence, the deflection in the coil of a moving coil galvanometer is directly proportional to the current flowing in the coil.

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Answer 2

A galvanometer works as an actuator, by producing a rotary deflection of a pointer, in response to electric current flowing through a coil in a constant magnetic field. ... They were the first instruments used to detect and measure small amounts of electric currents..

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