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Semiconductor Electronic: Material, Devices And Simple Circuits — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsSemiconductor Electronic: Material, Devices And Simple Circuits1 Mark
MCQ
Zener breakdown takes place if:
  • A
    Doped impurity is low
  • ✓
    Doped impurity is high
  • C
    Less impurity in $N-$part
  • D
    Less impurity in $P-$type
✓

Answer

Correct option: B.
Doped impurity is high
Zener breakdown occurs due to heavily doped diodes.In this process electrons crosses the barrier from the valence band of the $p-$type to the conduction band of the lightly filled $n-$type material.

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