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MHT CET202613 April 2026Evening ShiftPhysicsSemiconductorsActual

Choose the correct statement about Zener diode:

Options

  1. AIt works as a voltage regulator in reverse bias and behaves like simple pn junction diode in forward bias.
  2. BIt works as a voltage regulator in both forward and reverse bias.
  3. CIt works a voltage regulator only in forward bias.
  4. DIt works as a voltage regulator in forward bias and behaves like simple pn junction diode in reverse bias.

Correct answer

A. It works as a voltage regulator in reverse bias and behaves like simple pn junction diode in forward bias.

Step-by-step solution

A Zener diode is a heavily doped p-n junction diode designed to operate in the reverse breakdown region. In reverse bias, when the applied voltage reaches the Zener breakdown voltage, the voltage across the diode remains constant for a wide range of currents. This property allows it to be used as a voltage regulator. In forward bias, a Zener diode behaves exactly like a standard p-n junction diode, allowing current to flow when the forward voltage exceeds the barrier potential. Answer: It works as a voltage regulat

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