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The use for the electromagnet is to pick up scraps in junk yards.
Electromagnets can be 'turned off' so you can pick something up and drop it in another place. You can't do that with a permanent magnet.
They have other uses like locks, relays switches.
Look up electromagnets in wikipedia.
What else can I help you with?
What was the purpose of inventing the elevator?
To not have to walk
What is the purpose of inventing the telephone?
so you can communicate
What was the purpose of inventing Crayola crayons?
to color
What was the purpose of inventing the machine gun?
The purpose of inventing the machine gun was to have better fire power during the wars to defends places and win positions and the war.
Why was the purpose of inventing the meat slicer?
Slicing meat.
What was the purpose of inventing cars?
It was to replace horses as a means of transportation.
What was the purpose for inventing the radio?
So people can listen to amazing music.
What was the purpose of inventing the band aid?
To ease healing and avoid infection.
What is the purpose of inventing the camera?
To take pictures and to capture the memorable moments.
Purpose of inventing the compact disk?
It was to listen to music and now other things.
What was the purpose behind inventing the flushing toilet?
so you dont have to look at it and it doesnt smell.
What was the purpose of inventing the sandwich?
yummy food that's easy and fast to eat and make.
