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Question 20227
JEE Physics · Medium

Semiconductors: Zener Regulator MCQ

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Zener RegulatorMediumQuestion 20227

Question

In a Zener voltage regulator circuit, the Zener diode is connected:
  1. A
    In series with the load in forward bias
  2. B
    In parallel with the load in reverse bias
    Correct
  3. C
    In series with the load in reverse bias
  4. D
    In parallel with the load in forward bias

Correct answer

In parallel with the load in reverse bias

Explanation

Zener in parallel with load, reverse biased. As long as input voltage exceeds V_Z, Zener maintains constant V_Z across the load. A series resistor R_s drops the excess voltage. Current through Zener adjusts to maintain constant output.

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