JEE Mains · Physics · STD 12 -6. Electromagnetic induction
Certain galvanometers have a fixed core made of non magnetic metallic material. The function of this metallic material is
- A to oscillate the coil in magnetic field for longer period of time
- B to bring the coil to rest quickly
- C to produce large deflecting torque on the coil
- D to make the magnetic field radial
Answer & Solution
Correct Answer
(B) to bring the coil to rest quickly
Step-by-step Solution
Detailed explanation
Due to motion of the coil eddy current develops thus bringing the coil to rest.
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