question_answer

For conduction in a \[p-n\] junction, the biasing is:                                                               [AIPMT 2002]

A)  high potential on n-side and low potential on p-side

B)       high potential on p-side and low potential on n-side                                   

C)       same potential on both p and n-sides

D)  undetermined

Correct Answer: B

Solution :

For conduction in a \[p-n\] junction, it should be forward biased. For this p-side must be connected to positive terminal (higher potential) and n-side must be connected to negative terminal (lower potential). Figure below shows the \[p-n\] junction in a conducting state (forward biased condition)