GENERAL KNOWLEDGE

GK

BASIC GENERAL KNOWLEDGE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Microphone is used to convert
A
sound waves into magnetic currents
B
electrical energy into sound waves
C
sound waves into light rays
D
sound waves into electrical energy
Explanation: 

Detailed explanation-1: -Most microphones use either an electromagnetic or an electrostatic technique to convert sound waves into electrical signals. The dynamic microphone is constructed with a small magnet that oscillates inside a coil attached to the diaphragm.

Detailed explanation-2: -Microphones convert acoustical energy (sound waves) into electrical energy (the audio signal).

Detailed explanation-3: -Piezoelectricity uses unique crystals to convert mechanical energy-in this case, sound wave energy-into electrical energy.

Detailed explanation-4: -Hence, the microphone converts electrical energy to sound energy.

There is 1 question to complete.