A) forward current exceeds certain value
B) reverse bias exceeds certain value
C) forward bias is equal to certain value
D) potential barrier is reduced to zero
Correct Answer: B
Solution :
[b] At the zener breakdown voltage the electric field of the junction is high \[({{10}^{6}}V/m)\] enough to pull valence electrons from the host atoms. The emission of electrons from the host atoms accounts for high current at the breakdown.
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