Question

how can we change the polarity of an electromagnet?

Answer 1

Answer:

Explanation:

Reversing the Polarity of an Electromagnet

Find the two wires that are attached to the electromagnet and disconnect them, using pliers or a screwdriver. Reverse the positions of the wires. When you turn on the power, the poles of the electromagnet will be reversed.

Answer 2

Answer:

Every magnet has a north and a south pole. If you hold two bar magnets close to each other, they will either snap together or push apart, depending on the alignment of the poles. Like poles repel and unlike poles attract, and although the poles on a magnet may seem fixed, they can change under certain circumstances. Even the magnetic poles of planet Earth reverse every million years or so. It's possible to change the polarity of both electromagnets and permanent magnets using simple equipment and techniques.

Explanation:

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