Question

Electromagnets have following advantages over permanent magnets:

5 points

they can be turned ON and OFF.

The strength of the magnetic field can be varied.

Both of the above

None of the above​

Answer 1

Answer:

Hey mate,Here is your solution.

Explanation:

BOTH OF THE ABOVE

That was your doubt this is your solution

Answer 2

Answer:

Both of above

Explanation:

Hope it is helpful for u