Question

Demagnetisation of a magnet can be done by
a) Rough handling
c) Magnetising in the opposite direction
b) Heating
d) All the above​

Answer 1

Answer:

Demagnetization processes include heating past the Curie point, applying a strong magnetic field, applying alternating current, or hammering the metal. Demagnetization occurs naturally over time. The speed of the process depends on the material, the temperature, and other factors.

Option d) is correct.

Answer 2

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Actually Welcome to the Concept of the Magnetism.

Demagnetism of a magnet can be done by all the above mentioned processes.

hence, D.) All of the above.