In an abrupt p-n junction if NA ≪ ND, then the barrier potential is:1) \(\frac{{q{N_D}}}{{2{\epsilon_S}}}W\)2) \(\frac{{q{N_A}}}{{2{\epsilon_S}}}{W^2}\)3) \(\frac{{q{N_D}}}{{2{\epsilon_S}}}{W^2}\)4) \(\frac{{q\left( {{N_A}} \right)}}{{2{\epsilon_S}}}W\)of these statements:

(3) is correct but (1) is wrong

(1) is correct but (3) is wrong

(2) is correct but (4) is wrong

(4) is correct but (2) is wrong

In an abrupt p-n junction if NA ≪ ND, then the barrier potential is:

1.	In an abrupt p-n junction if NA ≪ ND, then the barrier potential is:1) \(\frac{{q{N_D}}}{{2{\epsilon_S}}}W\)2) \(\frac{{q{N_A}}}{{2{\epsilon_S}}}{W^2}\)3) \(\frac{{q{N_D}}}{{2{\epsilon_S}}}{W^2}\)4) \(\frac{{q\left( {{N_A}} \right)}}{{2{\epsilon_S}}}W\)of these statements:
A.	(1) is correct but (3) is wrong
B.	(2) is correct but (4) is wrong
C.	(3) is correct but (1) is wrong
D.	(4) is correct but (2) is wrong
Answer» C. (3) is correct but (1) is wrong

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In an abrupt p-n junction if NA ≪ ND, then the barrier potential is:1) \(\frac{{q{N_D}}}{{2{\epsilon_S}}}W\)2) \(\frac{{q{N_A}}}{{2{\epsilon_S}}}{W^2}\)3) \(\frac{{q{N_D}}}{{2{\epsilon_S}}}{W^2}\)4) \(\frac{{q\left( {{N_A}} \right)}}{{2{\epsilon_S}}}W\)of these statements:

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