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Question

Which of the following semi-conducting devices is used as voltage regulator?

A
Zener diode
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B
LASER diode
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C
Photo diode
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D
Solar cell
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Solution

The correct option is A Zener diode
Zener diode is used as a voltage regulator device because the voltage across the zener diode in reverse bias is constant after reaching certain value i.e. breakdown voltage.

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