22. In a p − n junction ___ ?
(a) The potential of the p and n-sides becomes higher alternately
(b) The p-side is at higher electrical potential than the n side
(c) The n-side is at higher electrical potential than the p-side
(d) Both the p and n-sides are at the same potential
Answer : (c) The n-side is at higher electrical potential than the p-side
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