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-BARSIC- [3]
3 years ago
5

What is an electromagnet? What are the parts of an electromagnet? How is an electromagnet useful when compared to a permanent ma

gnet?
Biology
1 answer:
kondaur [170]3 years ago
3 0

Answer:

Explanation:

The main advantage of an electromagnet over a permanent magnet is that the magnetic field can be quickly changed by controlling the amount of electric current in the winding. However, unlike a permanent magnet that needs no power, an electromagnet requires a continuous supply of current to maintain the magnetic field.

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