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Reverse bias applied to a junction diode...

Reverse bias applied to a junction diode

A

lowers the potential barrier

B

decreases the majority charge carriers

C

raises the potential barrier

D

changes the mass of p-n junction diode

Text Solution

Verified by Experts

The correct Answer is:
C
Reverse bias applied to a p-n junction diode raises the potential barrier because p-type material connected to the negative terminal and pulles the holes away from the junction. Similarly, n-type material connected to positive terminal and pulles the electrons. Therefore, the depletion region widens.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-SEMICONDUCTORS-Exercise 1 ( TOPICAL PROBLEMS )
  1. Which one of the following statements is false ?

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  2. The forward biased diode connection is

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  3. Reverse bias applied to a junction diode

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  4. In a reverse biased p-n junction, when the applied bias voltages is eq...

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  5. In a p- n junction diode not connected to any circuit,

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  6. When LED is forward biased, then

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  7. A full wave rectifier uses two diodes with a load resistance of 100 Om...

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  8. In forward biasing of the p-n junction:

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  9. In a P-N junction diode :

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  10. In the middle of the depletion layer of a reverse - biased p - n junc...

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  11. In a semi conductor diode , the barrier potential offers opposition to...

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  12. For germenium crystal, the forbidden energy gap in joules is

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  13. A 220 V AC supply is connected between points A and B. What will...

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  14. If an alternating voltage is applied across a diode in series with a l...

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  15. In half - wave rectification, what is the output frequency, if the inp...

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  16. The p-n junction which generates an emf when solar radiation falls on ...

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  17. Avalanche breakdown in a PN junction diode is to

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  18. If in a p-n junction diode , a square input single of 10 V is applied...

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  19. Pure Si at 300 K has equal electron (n(e)) and hole (n(h)) concentrati...

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  20. In an unbiased p-n junction,

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