Q 12-05-046JEE MainJEE Main 2022 (24 Jun, Shift 2)Easy
Soft iron is a suitable material for making an electromagnet. This is because soft iron has
Answer: (C) high permeability and low retentivity.
An electromagnet should magnetise strongly when current flows (high permeability) and lose its magnetism when the current is switched off (low retentivity, low coercivity). Soft iron has high permeability and low retentivity.
Solution by Sreeraj P, M.Sc Physics