Question

Which of the following statement is true for p-type semiconductor?

• A. At low temperature, free electrons will be localised
• B. Conduct electricity by electron conduction mechanism
• C. Conduct electricity by holes conduction mechanism
• D. p-type semiconductor is a instrinsic semiconductor

Answer 1

The correct option is C Conduct electricity by holes conduction mechanism

The electrical conduction by pure substances such as silicon and germanium are called intrinsic semiconductors.

p-type semiconductors are formed by doping intrinsic semiconductor with electron deficient impurity. Hence, it is not an intrisinc semiconductor

p-type semiconductor conduct electricity through hole conduction mechanism.
In p-type semiconductor, at low temperature the positive holes are localized.

n-type semiconductor conduct electricity through normal electron conduction mechanism.
Hence, option (c) is correct.