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  4. When forward bias is applied to a P-N junction, then what happens to the potential barrier VB, and the width of charge depleted region x ?

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Q. When forward bias is applied to a $P-N$ junction, then what happens to the potential barrier $V_{B}$, and the width of charge depleted region $x ?$

Semiconductor Electronics: Materials Devices and Simple Circuits

Solution:

In forward biasing, both $V_{B}$ and $x$ decrease.