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Question

Electromagnets work on the principle of


A

Heating effect of electric current

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B

Electro-chemical effect of electric current

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C

Magnetic effect of electric current

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D

Chemical effect of electric current

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Solution

The correct option is C

Magnetic effect of electric current


Electromagnet is a soft metal core made into a magnet by the passage of electric current through a coil surrounding it. It is based on the magnetic effect of electric current.


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