Question

A p-n junction diode is reverse biased. Then

A

more current flows.

B

the barrier potential decreases.

C

the barrier potential increases,

D

resistance offered is low.

Easy
Updated on : 2022-09-05
Solution
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Correct option is C)

The width of the depletion layer in a p-n junction diode increases in reverse bias as charge carriers are swept into battery terminals, holes from p-type into negative terminal and electrons from n-type into positive terminal. Due to large number of ions in depletion region, its potential increases.

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