Question

An intrinsic semiconductor at the absolute zero temperature

• A. has a large number of electrons
• B. behaves like a metallic conductor
• C. behaves like an insulator
• D. has a large number of holes

Answer 1

The correct option is C

behaves like an insulator

1. Semiconductors are made up of materials exhibiting electrical conductivity between conductors and non-conductors.
2. A pure semiconductor, free from impurities is called an intrinsic semiconductor. Example: Si, Ge.
3. At 0 K, no free electrons are available inside these semiconductors because all the electrons are involved in bond formation.
4. So, an intrinsic semiconductor behaves as an insulator at the absolute zero temperature.

Hence, the correct option is (C).