Question 3
(a) State one difference intrinsic and extrinsic semiconductors.
(b) Draw and label suitable diagrams to distinguish between an insulator and a semiconductor.
Observation
The expected response:
(a) Difference between Intrinsic and Extrinsic Semiconductors
Intrinsic |
Extrinsic |
Equal number of charge carriers/pure/undoped |
Unequal number of charge carriers/impure/doped |
Lower electrical conductivity |
Higher electrical conductivity |
(b) Difference between an insulator and a semiconductor
