Statement-1 : The sensitivity of a moving coil galvanometer is increased by placing a suitable magnetic material as a core inside the coil. and Statement-2 : Soft iron has a high magnetic permeability and cannot be easily magnetized or demagnetized.
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Question

Statement-1 : The sensitivity of a moving coil galvanometer is increased by placing a suitable magnetic material as a core inside the coil. and Statement-2 : Soft iron has a high magnetic permeability and cannot be easily magnetized or demagnetized.

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G1 Physics · Accepted Answer

A soft-iron core increases the field in the galvanometer and hence sensitivity, so Statement 1 is true. Soft iron has high permeability and is easily magnetized and demagnetized; Statement 2 says the opposite and is false. Hence C.