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10Demagnetization is the process of losing the magnetic properties of a magnet.
Heating a permanent magnet does not affect its magnetic properties.
Hammering a magnet can demagnetize it.
Passing alternating current (AC) through a magnet can cause demagnetization.
Keeping like poles of two magnets together for a long time strengthens the magnet.
Natural loss of magnetism occurs if a magnet is kept without a keeper for a long time.
A solenoid carrying AC can be used to demagnetize a bar magnet.
Demagnetization occurs only due to heating; other causes are insignificant.
Moving a magnet in and out of a solenoid with AC current helps in demagnetization.
Keeping a bar magnet in its keeper helps conserve its magnetic properties.
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What is demagnetization?
Which of the following can demagnetize a magnet?
What happens when like poles of two magnets are kept together for a long time?
Demagnetization by AC occurs because:
What is used to keep a bar magnet safe when not in use?
Which type of current can demagnetize a magnet?
Which of the following should be avoided to conserve a magnet?
How can a solenoid demagnetize a magnet?
Natural loss of magnetism occurs due to:
Which observation indicates successful demagnetization?
The process of losing the magnetic properties of a magnet is called ______.
Heating a magnet disturbs the ______ of molecular magnets.
Hammering a magnet scatters the ______ magnets in random directions.
Passing ______ current through a magnet can demagnetize it.
Keeping like poles together for a long time causes ______.
Natural loss of magnetism occurs when a magnet is kept without a ______.
Moving a magnet in and out of a ______ carrying AC demagnetizes it.
To conserve a magnet, it should not be ______ or hammered.
A ______ magnet kept in its keeper retains its magnetic properties.
Vibration in ______ magnets causes loss of magnetism.