In a p- n junction diode not connected to any circuit,

Options

A. The potential is the same everywhere
B. The p-type is at a higher potential than the n-type side
C. There is an electric field at the junction which is directed from the n-type side to the p-type side
D. There is an electric field at the junction which is directed from the p-type side to the n-type side

Answer

C

Explanation

(c) is correct. The electric field at the p-n junction is directed from n-type to p-type side.