What will happen when a p-n diode is reversed-biased? | CGP Edu

Physics Experimental Skills Characteristic Curves of a P-N Junction Diode in Forward and Reverse Bias MCQ (Single Correct)

What will happen when a p-n diode is reversed-biased?

A

No current flows

B

The depletion region is increased

C

The depletion region is reduced

D

The height of the potential barrier is reduced

Text Solution

Verified by Experts

The correct answer is:

When a p-n diode is reverse biased, its depletion region is widened. This is because the voltage at the cathode will be higher than at the anode. This has the effect of increasing or decreasing the effective resistance of the junction itself allowing or blocking current flow through the diode.

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