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Electromagnet

Which of the ...

Question

Which of the following objects make use of an electromagnet?

A

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B

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C

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D

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Solution

The correct option is D

An electric doorbell makes use of an electromagnet. An electromagnet works as a standard magnet (generating magnetic fields) but only with an electrical influence. When the power generation to an electromagnet stops, the production of the magnetic field also stops. Whereas all the other objects in the given options are not using any kind of electromagnetic force.

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