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In the depletion region of a diode....

In the depletion region of a diode.

A

(a) there are no mobile charges

B

(b) equal number of holes and electrons exists, making the region neutral

C

( c) recombination of holes and electrons has taken palce

D

(d) immobile charged ions exist.

Text Solution

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The correct Answer is:
A, B, C
Depletion zone is formed due to diffusin of e from n to p side. Due to diffusion positive immobile ions exists on n side and negative ions on p- side .Recombination of `e^(-)` and holes takes place on p-side. This results in (n-side more positive than p-side) formation of a junction field and potential barrier across the depletion zone.
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