The following statements about a loudspeaker are correct except?
PHYSICS
WAEC 2021
The following statements about a loudspeaker are correct except?
- A. its contains a permanent magnet.
- B. sound signal converted to varying current signal enters the speech coil.
- C. the current in the speech coil creates a magnetic force on the coil.
- D. the magnetic force on the speech coil is uni-directional.
Correct Answer: A. its contains a permanent magnet.
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