The coil of a moving coil galvanometer is wound over a metallic frame
Answer & explanation
Correct answer: option 2
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