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Diodes and Applications

Q1: 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

ANS:A - the p-type material is more positive than the n-type material

In p tpye no of Holes are majority whereas in n type no of electron are in majority. So the flow of current is due to holes.



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