Me. how can a permanent magnet be demagnetized?

a. cut the magnet in half.

b. heat the magnet up.

c. strike the magnet with a heavy blow.

both b and c

The correct answers are "Heat the magnet up" and "Strike the magnet with a heavy blow".

Explanation:

The domains of the permanent magnet of the magnet are aligned then the permanent magnet is magnetized. When it loses its magnetic field under some condition then it becomes Demagnetized. Demagnetization is to remove the magnetic properties from the magnet.

The permanent magnet can be demagnetized by the following ways:

By hammering or striking it.

By heating a magnet over a curie temperature.

By placing the magnet in the stronger opposite magnetic field.

Therefore, the correct option is both B and C.

science is a systematic and logical approach to discovering how things in the universe work. true to this definition, science aims for measurable results through testing and analysis. science is based on fact, not opinion or preferences. the process of science is designed to challenge ideas through research.

explanation:

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