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Zener diodes allow a current to flow in the reverse direction, when the

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in Power Electronics by (27.1k points)
Zener diodes allow a current to flow in the reverse direction, when the

(a) voltage reaches above a certain value

(b) temperature reaches above a certain value

(c) current always flows in the reverse direction only

(d) current cannot flow in the reverse direction

The question was posed to me in a national level competition.

My question comes from Types of Diodes-2 topic in section Diodes of Power Electronics

1 Answer

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by (45.1k points)
Correct answer is (a) voltage reaches above a certain value

The explanation: Zener diode has voltage regulating property. When voltage reaches above a certain value (Zener voltage), current starts to flow in the reverse direction.

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