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Question 20221
JEE Physics · Easy

Semiconductors: Zener Diode MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Zener DiodeEasyQuestion 20221

Question

Zener diode is operated in:
  1. A
    Forward bias only
  2. B
    Reverse breakdown region
    Correct
  3. C
    Both forward and reverse equally
  4. D
    Zero bias

Correct answer

Reverse breakdown region

Explanation

Zener diode is specially designed to operate in reverse breakdown at a precise voltage (Zener voltage V_Z). It maintains nearly constant voltage across itself despite varying current → used as voltage regulator.

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