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Electronics and Communication Engineering - Electronic Devices and Circuits - Discussion

Discussion Forum : Electronic Devices and Circuits - Section 1 (Q.No. 24)
Electronic Devices and Circuits
24.

Assertion (A): When a high reverse voltage is applied to a p-n junction the diode breaks down.

Reason (R): High reverse voltage causes Avalanche effect.

Both A and R are true and R is correct explanation of A
Both A and R are true but R is not a correct explanation of A
A is true but R is false
A is false but R is true
Answer: Option
Explanation:

Avalanche breakdown occurs at high reverse voltage.

Discussion:
1 comments Page 1 of 1.
Katekyo said:   8 years ago
High reverse voltage amplifies the reverse leakage current to a point that minority electrons have high enough energy passing through the depletion region and knocking other electrons in the process 1 electrons knock 2 others which in turn knocks others more like an avalanche.
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