Physics
christinjogy
2021-05-11 14:12:18
What is the benefit of electromagnets compared to regular magnets?
ANSWERS
chatfield1996
2021-05-11 19:05:45

An electromagnet is a core  of magnetic material  such as iron that is surrounded by a wire coil through which an electric current is passed to magnetize the core. When the current is turned off, the magnetic field disappears.The main benefit of an electromagnet over a regular magnet is that the magnetic field can be easily and quickly changed through controlling the amount of electric current passing through the coilingThus electromagnets are used widely in electrical devices such as motors, generators, hard disks, loud speakers and MRI machines.

ADD ANSWER