The soft-iron is a suitable material for making an electromagnet. This is because soft-iron has (a) low coercivity and high retentivity. (b) low coercivity and low permeability. (c) high permeability and low retentivity. (d) high permeability and high retentivity.

Answer: (c). High permeability gives a strong magnetic field for a small current. Low retentivity lets the magnet lose its magnetism when the current is switched off. So the answer is (c) high permeability and low retentivity.

The soft-iron is a suitable material for making an electromagnet… | JEE Main 2022 (24 Jun, Shift 2)

Q11JEE Main 2022 · 24 JUN · SHIFT 2Easy

Hysteresis, Soft Iron vs Steel & Shielding

The soft-iron is a suitable material for making an electromagnet. This is because soft-iron has

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Answer: (c)

High permeability gives a strong magnetic field for a small current.
Low retentivity lets the magnet lose its magnetism when the current is switched off.
So the answer is (c) high permeability and low retentivity.

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