Question

3) A permanent magnet can be demagnetized by ________
or _________​

Answer 1

Answer:

Explanation:

Magnet can de demagnetised by heating past the Curie point, applying a strong magnetic field, applying alternating current, or hammering the metal. Answer: By droppin it from height several times.,hammering it,passing electric current,forcebly keeping it near to the like poles of other strong magnets

Answer 2

A permanent magnet can be demagnetized by

heating past the curie point or applying a strong magnetic field.