Question

A pn junction allows current flow when
a. the p-type material is more positive than the n-type material
b. the n-type material is more positive than the p-type material
c. both the n-type and p-type materials have the same potential
d. there is no potential on the n-type or p-type materials

Answer 1

c. same potential as then the no. of holes should be equal to the no. of electrons.


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Answer 2

Answer:

option no b.the n-type material is more positive than the p-type material