Q 12-04-132JEE MainJEE Main 2023 (8 Apr, Shift 1)Easy
Certain galvanometers have a fixed core made of non magnetic metallic material. The function of this metallic material is
Answer: (B) to bring the coil to rest quickly
As the coil swings, eddy currents are induced in the metallic core and oppose the motion (electromagnetic damping), so the coil comes to rest quickly.
Solution by Sreeraj P, M.Sc Physics