# In forward bias, the width of potential barrier in a P-N junction diode Option 1) Increases  Option 2) Decreases Option 3) Remains constant Option 4) First increases then decreases

P -N junction as diode -

It is a one way device. It offers a low resistance when forward biased and high resistance when reverse biased.

- wherein

R = 0, Forward

$\rightarrow \infty$ Reverse

In forward bias, The width of potential barrier decreases and hence flow of current becomes high

Option 1)

Increases

Option is incorrect

Option 2)

Decreases

Option is correct

Option 3)

Remains constant

Option is incorrect

Option 4)

First increases then decreases

Option is incorrect

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