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The current through any p-n junction is ...

The current through any `p-n` junction is due to
(a) drift of charge carriers
(b) diffusion of charge carriers
( c) different concentrations of same type of charge carriers in different regions.
(d) Same concentrations of same type of charge carriers in different regions

A

`a,b` and `c`

B

`a` and `b` only

C

only `d`

D

`a,b,c,d`

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The correct Answer is:
A
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