Welcome to the Quiz!

This quiz contains 6 questions from a mix of 1 subtopics.

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This lesson covers:

  1. How loudspeakers use the motor effect to convert electricity to sound waves
  2. How microphones use the generator effect to convert sound waves to electricity
Diagram showing the internal structure and function of a microphone.

What is the function of a microphone?

It converts alternating current into direct current

It converts electrical signals into sound waves

It converts sound waves into electrical signals

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1

Do loudspeakers rely on the generator effect (electromagnetic induction), or the motor effect?

Motor effect

Generator effect (electromagnetic induction)

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Do microphones rely on the generator effect (electromagnetic induction), or the motor effect?

Generator effect (electromagnetic induction)

Motor effect

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What is the structure labelled A in the above digram of a loudspeaker?

Magnet

Coil

Cone (diaphragm)

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What is the structure labelled A in the above digram of a microphone?

Magnet

Coil

Cone (diaphragm)

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1