GEOLOGY

Detailed explanation-1: -electromagnet: A magnet made of an insulated wire coiled around an iron core (or any magnetic material such as iron, steel, nickel, cobalt) with electric current flowing through it to produce magnetism.

Detailed explanation-2: -Electromagnets consist of coils, usually copper, wrapped tightly around a laminated core of ferromagnetic material (soft iron, steel, cobalt). Electromagnets require a refrigeration system, generally water, to dispose of heat produced by the dissipated electricity.

Detailed explanation-3: -Core of electromagnets are made of ferromagnetic material which has high permeability and low retentivity.

Detailed explanation-4: -Soft iron is used to make electromagnets because soft iron has good or high magnetic properties. It can provide a strong magnet. Q. Why is soft iron used as the core of the electromagnet in an electric bell?