Question

The electrical pulses from a microphone are strengthened using a/an ___.

• A. amplifier
• B. papercone
• C. magnet
• D. coil

Answer 1

The correct option is A

amplifier

The electrical pulses from a microphone are strengthened using an amplifier and sent through the voice coil of a loudspeaker. The voice coil, which is placed in the magnetic field, produces vibrations as it moves to and fro, in accordance with the electrical pulses.