Single Answer MCQ
Q-00040528
What is the role of magnetic fields in speakers?
1
To store electrical energy.
2
To produce sound by vibrating the diaphragm.
3
To cool the electrical components.
4
To magnify the sound.
Answer and Solution
Answer
B. To produce sound by vibrating the diaphragm.
Solution:
In speakers, magnetic fields are used to make the diaphragm vibrate in response to electric signals, producing sound.
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