If `n_(c ) and n_(h)` are electron and hole concentralious in an extrinsic semiconductor and `n_(i)` is electron concentrations in an intrinsic semiconductor, then
A
`(n_(e)/n_(h)) = n_(i)`
B
`(n_(e)+n_(h)) = n_(i)`
C
`(n_(e) - n_(h)) = n_(i)^(2)`
D
`(n_(e)n_(h)) = n_(i)^(2)`
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The correct Answer is:
A
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