Question

In an intrinsic semiconductor, the number of electrons in the conduction band is ________ the number of holes in the valence band.

• A. equal to
• B. less than
• C. greater than
• D. none of these

Answer 1

The correct option is A equal to

In an intrinsic semiconductor, the number density of electrons is equal to the number density of holes i.e $ne=nh$.
Since there is no doping, no extra hole or electron is produced.