Question

DISTINGUISH between intrinsic and extrinsic semiconductor on the basis of electrical conductivity and the ratio of holes and numbers of holes and number of conduction electron

Answer 1

the semiconductors formed by the mixing of two or more elements are called extrinsic semiconductors

while those which are in the purest form are called the intrinsic semiconductors.

In the extrinsic semiconductors the the impurities added will lead to the the conductivity of the the semiconductors.

however , due to the pure form in the intrinsic semiconductor the chances of high conductivity decreases