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Avalanche breakdown in a PN junction di...

Avalanche breakdown in a `PN` junction diode is to

A

shift of fermi level

B

widening of forbidden gap

C

high impurity concentration

D

commulative effect of conduction band electrons collision

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Verified by Experts

The correct Answer is:
D
At a particular value of reverse bias voltage, the covalent bonds near the junction break, so electron-hole pairs get liberated, this process rapidly multiplies and an avalanche of electron-hole pairs is produced.
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