state one advantage of electromagnet over permanent magnet
Answers
Answered by
1
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.
Answered by
1
Answer:
the polarity of the electro magnet can be reversed
Similar questions