Question

A microphone converts :

(a) electrical energy into sound energy in ordinary telephone

(b) microwave energy into sound energy in a mobile phone

(c) sound energy into mechanical energy in a stereo system

(d) sound energy into electrical energy in public address system​

Answer 1

Answer:

The answer is option (d) Sound energy into electrical energy in public address system.

Explanation:

A microphone converts sound into a small electrical current. Sound waves hit a diaphragm that vibrates, moving a magnet near a coil. In some designs, the coil moves within a magnet. Other microphones, such as condenser microphones, work on the principle of capacitance.

Answer 2

Answer:

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A microphone converts sound energy into electrical energy in public address systems. Therefore, the answer is-

(d) Sound energy into electrical energy in public address system.