Diodes and Applications - Technical MCQs
Q1: A pn junction allows current flow whenA
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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