What are permanent and electro magnets ? Give two uses of each
Answers
Answer:
Permanent Magnets :-
♥ Permanent magnets have constant magnetic field around it
♥ Uses - Electric generator & loudspeaker
Electro Magnets :-
♥ When a soft iron is placed inside a solenoid and current is passed it gets magnetised . The magnet so formed is electromagnet
♥ Uses - Cranes & Electric bells
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Jannat ❤
Answer:
Explanation:
Electromagnet : It acts like a magnet when current flows through it
It is used in DC motors
It can be made easily more powerful than permanent magnet
Application:. Electric motors , Electric bells
Permanent magnet
It is used in Ac generator
The properties cannot be altered
No change can be done