Question

In figure is the potential barrier across a $p-n$ junction, when no battery is connected across the junction:

• A. $1$ and $3$ both correspond to forward bias of junction
• B. $3$ correspond to forward bias of junction and $1$ corresponding to reverse bias of junction
• C. $1$ correspond to forward bias and $3$ corresponds to revrs bias of junction
• D. $3$ and $1$ both correspond to reverse bias of junction

Answer 1

The correct option is B $3$ correspond to forward bias of junction and $1$ corresponding to reverse bias of junction

When p-n junction is forward biased, it opposes potential barrier and when p-n junction is reversed biased, it supports the potential barrier. Resulting in increase in potential barrier. 3 is forward biased and 1 is reverse biased.

3 corresponds to forward bias of junction and 1 corresponds to reverse bias of junction.

The correct option is B.