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In an unbiased p-n junction , holes diff...

In an unbiased p-n junction , holes diffuse from the p-region to n- region because

A

free electrons in the n-region attract them

B

they move across the junction by the potential differences

C

hole concentration in p-region is more as compared to n-region.

D

All the above

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • in a p-n junction :

    A
    high potential is at n- side and low potential at p- side .
    B
    high potential is at p- side and low potential at n- side
    C
    p and n both are at same potential
    D
    undetermined

  • In a p -n junction

    A
    high potential at n side and low potential at p side
    B
    high potential at p side and low potential at n side
    C
    low potential at both p and n side
    D
    high potential at both p and n side

  • In a p - n junction diode

    A
    the current in the reverse biased condition is generally very small
    B
    the current in the reverse biased condition is small but the forward biased current is independent of the biased voltage
    C
    the reverse biased current is strongly dependent on the applied bias voltage
    D
    the forward biased current is very small in comparison to reverse biased current

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