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Brian is repairing an old alarm clock. He needs to replace a device that converts electric energy into sound. Which device should he use?

A. Battery
B. Buzzer
C. Motor
D. Switch

Answer :

Final answer:

Brian should use a buzzer to replace the device in the alarm clock that converts electric energy into sound. A buzzer specifically transforms electrical energy into sound energy, making it the ideal choice. Other options like batteries, motors, and switches do not serve this purpose.


Explanation:

Choosing the Right Device for an Alarm Clock

When repairing an alarm clock and needing to replace a device that converts electric energy into sound, Brian should select a buzzer. A buzzer is a specific type of audio output device that transforms electrical energy into sound energy.

For example, similar to a door buzzer, a buzzer typically contains a vibrating metal piece that generates sound when the electric circuit is completed. In a basic buzzer circuit, when the metal piece makes contact with a nail, it creates a magnetic effect that enables sound production.

Other Options Explained

  • Battery: Provides power, but does not convert energy into sound.
  • Motor: Converts electric energy into motion, not specifically sound.
  • Switch: Controls the flow of electricity but does not produce sound.

Thus, the correct choice for Brian's alarm clock repair is the buzzer, as it is the device designed to produce sound from electrical energy.


Learn more about alarm clock repair here:

https://brainly.com/question/43262662


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