When a forward is applied to a p-n junction, then what happens to the potential barrier $V_{B}$ and the width of charge depleted region x

V_{B}

increases ,

x

decreases

No worries! We‘ve got your back. Try BYJU‘S free classes today!

V_{B}

decreases ,

x

increases

No worries! We‘ve got your back. Try BYJU‘S free classes today!

V_{B}

increase ,

x

increases

No worries! We‘ve got your back. Try BYJU‘S free classes today!

V_{B}

decreases ,

x

decreases

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D $V_{B}$ decreases , $x$ decreases
The forward bias voltage opposes the potential barrier. Due to this, the potential barrier is reduced and hence the depletion layer becomes thin. The conduction across p-n junction takes place due to migration of majority carriers from one region to another. Hence, in forward biasing both $V_{B}$ and $x$ decreases.

Suggest Corrections

Similar questions

When forward bias is applied to a p-n junction, then what happens to the potential barrier $V_{B}$ , and the width of charge depletion region?

E = -dV/dr, here the negative sign signifies that

Q. If the forward bias on p-n junction is increased from zero to

0.045 V

, then no current flows in the circuit. The contact potential of junction i.e.

V_{B}

A, B and C are voltmeters of resistance R,1.5 R and 3R respectively as shown in the figure.When some potential difference is applied between X and Y, the voltmeter readings are $V_{A}, V_{B}$ and $V_{C}$ respectively.Then :

Join BYJU'S Learning Program

When a forward is applied to a p-n junction, then what happens to the potential barrier VB and the width of charge depleted region x

When a forward is applied to a p-n junction, then what happens to the potential barrier $V_{B}$ and the width of charge depleted region x