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When p-n junction diode is forward biase...

When `p-n` junction diode is forward biased then

A

the depletion region is reduced and barrier height is increased

B

the depletion region is widened and barrier height is reduced

C

both depletion region and barrier height are reduced.

D

both the depletion region and barrier height are increased.

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The correct Answer is:
C
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Knowledge Check

  • When a p-n junction diode is forward biased, the flow of current across the junction is mainly.

    A
    due to drift of charges
    B
    due to diffusion of charges.
    C
    due to both drift and diffusion of charges.
    D
    due to charge-less particles.

  • When p- n junction diode is forward baised them

    A
    both the deplection regain and harrier height are reducted
    B
    the depletion regain is widened and harrier height is reduced
    C
    the deplection regain , is reducted and harrier heighis increases
    D
    Both the depletion regain and barrier are increases

  • When a p-n junction diode is forward-biased, energy is released at the junction due to the recombination of electrons and holes. This energy is in

    A
    Visible region
    B
    Infrared region
    C
    UV region
    D
    X-ray region
    • RESONANCE-SEMICONDUCTORS-Exercise 3
    1. When p-n junction diode is forward biased then

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    2. When npn transistor is used as an amplifler

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    3. The electrical conductivity of a semiconductor increases when electrom...

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    4. In a common base ampifier , the phase difference between the input sig...

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    5. If a full wave reactifier circuit is operating from 50 Hz mains, the f...

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    6. If the ratio of the concentration of electron to that of holes in a se...

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    7. In a common base mode of a transition , the collector current is 5.48...

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    8. If the lattice constant of this semiconductor is decreased, then which...

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    9. The circuit has two oppositively connected ideal diodes in parallel wh...

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    10. If a p-n junction diode, a square input signal of 10 V is applied as s...

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    11. Carbon , silicon and germanium have four valence electrons each . At r...

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    12. A working transitor with its three legs marked P, Q and R is tested us...

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    13. In the circuit below, A and B represents two inputs and C represents t...

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    14. The Fig shown input waveforms A and B to a logic gate. Draw the output...

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    15. a p -n juction (D) shown in the figure can act an a rectifier An alter...

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    16. The output of an OR gate is connected to both the inputs of a NAND gat...

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    17. Truth table for system of four NAND gates as shown in figure is : .

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    18. The 1- V characteristic of on LED is

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    19. The forward biased diode connection is

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    20. Two identical p-n junctions may be connected in series in which a batt...

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