Correct Answer - Option 2 : Amplifier
Content:
Transducer: It can be defined as a device that converts energy from one form to another. It can also be defined as a device that converts any variation in physical quantity such as displacement, pressure, etc into electrical signals. The most common example is the conversion of audio signals into electrical signals. Common examples of transducers are microphones, loudspeakers, LED, etc.
Microphone: A microphone is one of the most common transducers which converts sound into electrical signals. There are various applications of microphones such as for hearing aids, public speaking, telephones, computers, etc.
Explanation:
Both microphones and loudspeakers are examples of transducers because they convert audio signals into electrical signals. But amplifier does not convert the form of energy or signals. It simply amplifies the signal. So it is related to only change in amplitude.
An amplifier is not an example of a transducer.
The correct answer is option (2)
