Q:

How do you recharge a magnet?

A:

Quick Answer

Permanent magnets with diminished field strength can be recharged in at least three ways: by striking, stroking or stacking. Each of these methods entails lining up the weakened magnet with a stronger external field and using it to realign its particles.

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Full Answer

Striking a magnet involves aligning the magnet with the Earth's magnetic north pole. Once aligned, the magnet can be forcibly struck with a hammer to shake its molecules into parallel lines. Stroking involves repeatedly running a strong magnet over the weakened magnet to pull its particles into alignment. Stacking strong magnets together with the weakened one, then clamping them together for a period of time, also strengthens the weak magnet's field.

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Related Questions

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    What are some examples of magnets?

    A:

    One example of a magnet is a refrigerator magnet. These are also called permanent magnets because they always retain a certain degree of their magnetism. There some other general categories for magnets, such as temporary magnets and electromagnets.

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    Is lead magnetic?

    A:

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    How can I determine the positive and negative sides of a magnet?

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    A:

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