Science, asked by tsurendar715, 2 months ago

electromagnetism is permanent

Answers

Answered by ayush12121

0

Answer:

no electromagnetic is not permanent

Answered by arth696

0

Answer:

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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