In an unbiased p-n jinction

Options

A. Potential at p is equal to that at n
B. Potential at p is +ve and that at n is -ve
C. Potential at p is more that that at n
D. Potential at p is less than that at n

Answer

D

Explanation

The field at the positive side of the depletion layer is higher , when there is no bias . One can say potential at p side is lower than that at the n side , because of the potential at the depletion sides . When there is no bias, anyway there will no current .