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Questions  

Consider the following statements.

(A) In an intrinsic semiconductor number of holes and electrons are same.

(B) In an  p type extrinsic semiconductor number of holes doesn't depend on doping concentrations.                                        

a
Both (A) and (B) are true.
b
(A) is true but (B) is false.
c
(A) is false but (B) is true.
d
Both (A) and (B) are false.

detailed solution

Correct option is B

In intrinsic semiconductor holes and electrons have same number density. In an extrinsic semiconductor majority charge carriers concentration depends on doping concentration.

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