Q. If the ends $p$ and $n$ of $p - n$ diode junction are joined by a wire
A) There will not be a steady current in the circuit
B) There will be a steady current from $n$-side to $p$-side
C) There will be a steady current from $p$-side to $n$-side
D) There will not be a current depending upon the resistance of the connecting wire
Explanation
(c) When a $p - n$ junction is formed, $n$-side attains positive potential and $p$-side attains negative. When ends of $p$ and $n$ of a $p - n$ junction are joined by a wire, there will be a steady conventional current from $n$-side to $p$-side through the wire and $p$-side to $n$-side through the $p - n$ junction.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.