Computer Science for IGCSE & O level - Hardware (Section 25 - No. 36)
What happens to the electric current produced by a microphone?
It is amplified and sent to a recording device.
It is used to vibrate the diaphragm.
It is converted directly into sound waves.
It is used to power the LED in the microphone.
Giải thích
The electric current from the microphone is amplified and sent to the recording device.