CUET Preparation Today
The coil of a moving coil galvanometer is wound over a metallic frame |
to increase moment of inertia to provide electromagnetic damping to increase its sensitivity to reduce hysteresis loss |
to provide electromagnetic damping |
The correct answer is Option (2) → to provide electromagnetic damping Explanation: The metallic frame provides eddy current damping when the coil moves in the magnetic field. These eddy currents oppose the motion and bring the coil quickly to rest without oscillations. Hence, the metallic frame is used to provide electromagnetic (eddy current) damping. Answer: to provide electromagnetic damping |
