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

A. Speaker
B. Buzzer
C. Motor
D. Reset

Answer :

Final answer:

To convert electric energy into sound energy, Brian should use a speaker in the alarm clock.


Explanation:

To convert electric energy into sound energy in an alarm clock, Brian should use a speaker. A speaker consists of a magnet and a coil of wire, which are connected to the clock's circuitry. When an electric current passes through the coil, it creates a magnetic field that interacts with the magnet, causing the cone of the speaker to vibrate and produce sound waves.


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