Question

Which of the following is a property of a buzzer?
A. it is having a different mechanism from the electric bell
B. it is having a higher frequency of collision of gong and hammer
C. it is using only AC power supply.
D. none of these options.

Answer 1

Hint: A buzzer is also known as a beeper and is defined as an audio signalling device. This one may be mechanical, electromechanical or piezoelectric or in short we can say piezo. The general uses of buzzers and beepers consist of alarm devices, timers and can be used as confirmation of user input like a mouse click or keystroke. This will help you in answering this question.

Complete answer:
A buzzer is defined as the simplest sort of doorbell. It is having an electromagnet which is used to operate in a self-interrupting circuit. We have to click and hold the doorbell button in order to understand how the buzzer works. This will break the doorbell circuit, which will shut off the electromagnet. The characteristic of a buzzer includes having a higher frequency of collision of gong and hammer. The gong refers to the kind of sound produced when hit by a hammer. Therefore the answer for the question is being obtained.

This has been mentioned as option B.

Note:
In ancient days, these devices were based on an electromechanical system which is identical to an electric bell without having the metal gong. The electromechanical buzzers are made by the means of electro mechanics. In the same way, mechanical ways used to make the metal gong can be said as the mechanical buzzers which requires a driver. A piezoelectric buzzer is dependent on the acoustic cavity resonance.