Application of a forward bias to a P-N juncti | vedclass

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(A) When a $P-N$ junction is forward biased,the positive terminal of the external battery is connected to the $P$-side and the negative terminal to th

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decreases the electric field in the depletion zone.

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(A) When a $P-N$ junction is forward biased,the positive terminal of the external battery is connected to the $P$-side and the negative terminal to the $N$-side.This setup opposes the internal electric field of the depletion region.As a result,the potential barrier height decreases,and the width of the depletion zone decreases.Since the electric field $E$ is related to the potential barrier $V_B$ and width $W$ by $E = V_B / W$,the reduction in the potential barrier and the narrowing of the depletion region lead to a decrease in the electric field within the depletion zone.

Application of a forward bias to a $P-N$ junction

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