Question

A n-type extrinsic semiconducting material is
A. negatively charged
B. positively charged
C. electrically neutral
D. negatively or positively charged depending on the dopant

Answer 1

C. It will be electrically neutral.

Explanation:

The n-type and p-type intrinsic semiconductors have their own set of charge carries. They also have balance and equilibrium between positive and negative charge carriers. When they are doped with an impurity, they become extrinsic semiconductors. Impurity increases their conductivity but does not affect the balance and equilibrium between charge carriers. So, they remain electrically neutral.