Which graph represents the variation of charg | vedclass

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(A) In a $P-N$ junction,the depletion region is formed by the diffusion of charge carriers. On the $P$-side of the junction,there are immobile negativ

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(A) In a $P-N$ junction,the depletion region is formed by the diffusion of charge carriers. On the $P$-side of the junction,there are immobile negatively charged acceptor ions. On the $N$-side of the junction,there are immobile positively charged donor ions. Therefore,the charge density is negative on the $P$-side and positive on the $N$-side. Graph $A$ correctly depicts this distribution,where the charge density is negative for $P$ (left of the junction) and positive for $N$ (right of the junction).

Which graph represents the variation of charge density with distance across a $P-N$ junction?

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