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18. Explain how a speaker works using the following terms: temporary magnet,
permanent magnet, cone, electrical signal)



Answer :

GinnyAnswer

Final answer:

A speaker converts electrical signals into sound using a temporary magnet (voice coil), permanent magnet, cone, and electrical signal.


Explanation:

A speaker works by converting an electrical signal into sound using several components:

  • Permanent magnet: Provides a constant magnetic field.
  • Temporary magnet (voice coil): Becomes magnetized temporarily when an electrical current flows through it.
  • Cone: Attached to the voice coil, it vibrates based on the oscillating force produced by the current.
  • Electrical signal: Flows through the voice coil, creating a magnetic field that interacts with the permanent magnet, causing the cone to vibrate and produce sound waves.

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