CharlieHarts1 CharlieHarts1

12-02-2015
Physics

Answered

Why is it necessary to use at least one electromagnet in a motor instead of using only permanent magnets?

Answer :

sethclark sethclark

14-02-2015

Because as you might already know electromagnets use a conductive metal and electricity to make the said electromagnet. So what do you get if you use the electromagnet and move it through coiled wire. The magnetism makes a electrical current thus making your motor.

I hope that this was helpful for you. :3

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huntrw6 huntrw6

05-06-2019

A correct answer (sample response) is:

Generators are important because they can provide electricity during a power outage. This is especially important at hospitals, so doctors and nurses can continue to treat patients during a power outage.

[tex]|Huntrw6|[/tex]

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