A microphone converts-
Answer
Correct Answer : b ) sound waves to electrical signals
Explanation :A microphone converts sound waves to electrical signals. Sound waves hit a diaphragm that vibrates and moves a magnet near the coil, hence electric current flows through it. The current flows out from microphone to an amplifier.
Loudspeaker converts electrical signals to sound waves. In Fuel cells, chemical energy is converted to Electrical energy.
Hence, option (B) is correct.
This question was asked in General Ability Paper of NDA (II) 2022 Exam. Check out the question paper and answer key of NDA 2 2022 Exam.
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