Core of transformer is made up

Why the core of a transformer is made up of a high permeability material ?

Assertion : When a current flows in the coil of a transformer then its core becomes hot. Reason : The core of transformer is made of softiron.

Assertion : When a current flows in the coil of a transformer then its core becomes hot. Reason : The core of transformer is made of softiron.

The core of a transformer is made of magnetic material of high permeanbility. Why ?

The core of a transformer is made of a material having norrow hysterisis loop. Why ?

Permanent magnets are made of steel while the core of transformers is made of soft iron. Why?