Question

what are the advantages of electromagnets over permanent magnets?give 3 points

please answer fast its very urgent.

Answer 1

✌✌Hey dear✌✌


✔✔The main advantages of electromagnets over permanent magnets 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, and electromagnet requires a continuous supply of current to maintain the magnetic field.✔✔

❤❤Hope it will help you❤❤

Answer 2

1. there strength can be increased or decreased as per our requirements.

2. they can be switched on and off when required.

3.they can provide the required field due to small size.

HOPE IT HELPS YOU!!