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Question

Distinguish between n-type and p-type semiconductors


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Solution

Definition of Semiconductor:

Semiconductors are materials that have conductivity lesser than the conductivity of conductors and more than the conductivity of non-conductors or insulators. Semiconductors can be compounds such as gallium arsenide or pure elements, such as germanium or silicon.

Difference between n-type and p-type semiconductors:

n-type semiconductorp-type semiconductor
1. Its conductivity is mainly due to electrons.1. Its conductivity is mainly due to holes.
2. It is completely neutral.2. It is entirely neutral.
3. I=Ie and ne>>nh3. I=Ih and nh>>ne
4. The majority are electrons and the minority are holes in n-type semiconductors4. The Majority are holes and Minorityare electrons in the p-type semiconductors

The diagram is given below shows both an and p-type conductor


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