PhysicsJEE Main 5 Apr 2026, Shift 2·Q20·MCQ·Easy–moderate

Semiconductor Electronics · p-n junction and diodes

In a semiconductor p-n diode, the doping concentrations on p-side and n-side are

10^{15}

atoms/

\mathrm{cm^3}

and

10^{18}

atoms/

\mathrm{cm^3}

, respectively. Which one of the following statements is true?

(1)Widths of depletion region on either side of the interface are equal
(2)The depletion region width is more on p-side compared to that in n-side
(3)The depletion region width is more on n-side compared to that in p-side
(4)No depletion region forms because of unequal doping concentrations on p and n-sides

We corrected a printing error in the original paper

Source printed “Which one of the following statement is true?”.

Video solution coming soon

We're animating every PYQ step by step. Subscribe to get them first.

More on p-n junction and diodes