How Dynamic Microphones and Loudspeakers Work - Physics
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Questions and Answers

In a dynamic microphone, what causes the coil to move and induces current in the coil?

  • Pressure variations in the sound waves (correct)
  • Movement of the loudspeaker cone
  • Electric current flowing through the coil
  • Static magnetic field

    • What interaction causes the coil to move in a loudspeaker?

  • Magnetic field from the magnet and electric current (correct)
  • Pressure variations in the sound waves
  • Static magnetic field
  • Coil overheating

    • What happens when the coil in a dynamic microphone moves?

  • Magnetic field cuts through the coil
  • Magnet is fixed at the centre
  • Electric current is produced by the loudspeaker
  • Induction of current in the coil (correct)

    • How does a dynamic microphone differ from a condenser microphone based on the provided text?

    <p>Dynamic microphones have a free-moving coil, while condenser microphones have a fixed coil.</p> Signup and view all the answers

    What initiates the movement of the cone in a loudspeaker?

    <p>Electric current flowing into the coil</p> Signup and view all the answers

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