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Is it true electromagnets is used in speakers?

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True

False

answer is A.

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Detailed Solution

The above statement is True.
An electromagnet is a type of temporary magnet with adjustable strength capability. Electromagnets are constructed from wire coils wrapped around an iron core. The iron core gets magnetised when the current is passed through the wire coil. The practical applications of electromagnets are electric bells, telegraphs, telephones, and speakers, among other things.

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