MHT CET Physics question

Not in JEE Advanced syllabus

If a p-n junction diode is not connected to any circuit

(A)the potential is the same everywhere
(B)the p-type side is at a higher potential than
(C)there is an electric field at the junction directed from the n-type side to the p-type sideCorrect
(D)there is an electric field at the junction directed form the p-type side to the n-type

Answer: (C)

Solution

Diffusion of carriers leaves positive donor ions on the n-side and negative acceptor ions on the p-side, which sets up a built-in field directed from the n-side to the p-side, with the

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Question ID VK-085191