Which component of a moving coil loudspeaker vibrates to produce sound?

Soft iron core

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Voice coil.

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Pole plates

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Magnet

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Solution

The correct option is B
Voice coil.

In a moving coil loudspeaker, the electrical pulses from a microphone are strengthened using an amplifier and sent through the voice coil of the loudspeaker. The voice coil, which is placed in the magnetic field, produces vibrations as it moves to and fro, in accordance with the electrical pulses.

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