Home
Class 12
PHYSICS
When a p-n diode is reverse biased, then...

When a p-n diode is reverse biased, then

A

no current flows

B

the depletion region is increased

C

the depletion region is reduced

D

the height of the potential barrier is reduced

Text Solution

Verified by Experts

The correct Answer is:
b
When a p-n junction is reverse biased, its depletion region is widened.
Promotional Banner

Topper's Solved these Questions

  • SEMICONDUCTOR ELECTRONICS

    FULL MARKS|Exercise Additional Question (Short Answer Questions)|22 Videos

  • SEMICONDUCTOR ELECTRONICS

    FULL MARKS|Exercise Additional Question (Long Answer Questions.)|3 Videos

  • SEMICONDUCTOR ELECTRONICS

    FULL MARKS|Exercise Textual Evaluation Solved (Numerical Problems)|5 Videos

  • SAMPLE PAPER-8

    FULL MARKS|Exercise PART-IV|10 Videos

Similar Questions

Explore conceptually related problems

If an p-n diode is reverse biased, then the resistance measured by an ohm meter, will be

When a p-n junction is reverse-biased,the current becomes almost constant at 25µA. current of when it is forward biased at 200 mV . a current of 75µA is obtained.Find the magnitude of diffusion current when the diode is (a)unbiased ,(b)reverse-biased at 200 mVand (c )forward-biased at 200mV.

In the normal working of a transistor , the emitter is forward biased and collector is reverse biased. a. Comment on the above statement . b. Can we exchange emitter and collector of a transistor ? c. Base region of a transistor is made very thin and lightly doped. Why ? d. "Eventhough the collector - base is reverse biased, the current flow takes place with out experiencing much high resistance" , Give your explanation.

A p-n diode can be used as

The potential barrier exists across the junction is 0.2volt.What minimm kinetic energy a hole should have to diffuse from the p-side to the n-side if (a)the junction is unbiased,(b)the junction is forward-biased at 0.1volt and ©the junction is reverse-biased at 0.1volt?

Diode is used as an a

What will happen if both , emitter and collector of a transistor are reverse biased ?