Electromagets are used in ______.

speakers

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metal detectors

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hard drives

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food industry

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Solution

The correct options are
A speakers
B metal detectors
C hard drives
D food industry
A current carrying conductor can behave like a magnet. It is called an electromagnet. Electromagnets are temporary magnets. Speakers, metal detectors and hard drives work on the principle of electromagnets. Also, it is used in food industry for seperating small metallic particles.

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