Question 12 of 68 in Electromagnetism

ELECTRIC MOTORS AND ELECTROMAGNETIC INDUCTION

1 mark · Normal

State the device which uses the motor effect to produce sound waves.

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Loudspeaker

Must show: Correct naming of loudspeaker

Also accept: Moving-coil loudspeaker

Common mistakes: Saying 'microphone' (which is incorrect)

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Marking points

B1 · 1 mark · Names loudspeaker or moving-coil loudspeaker.

Worked solution

The device is a loudspeaker.

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