If a p-n junction diode is not connected to any circuit, then
If a p-n junction diode is not connected to any circuit, then
(A) the potential is same everywhere.
(B) potential is not same and n-type side has lower potential than p-type side.
(C) there is an electric field at junction direction from p-type side to n-type side.
(D) there is an electric field at the junction directed from n-type side to p-type side.
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(D) there is an electric field at the junction directed from n-type side to p-type side.
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