An advantage of using an electromagnet, shown in the image below(attached), instead of a regular magnet to move cars in a junk yard is then an electromagnet can easily be turned on and off.
True or False.
Is it false?

Question

anonymous · Answer

attachment

shamim · Answer

If u turn off ur switch for electricity, magnet will b vanishes

shamim · Answer

And when u will turn on ur switch of electricity, u will get magnet by which u will b able to attract those cars

shamim · Answer

Response plz

shamim · Answer

But a regular magnet is always a magnet. There is no way to turn off it