Question

What n - type semiconductor is heated :

• A. number of electrons increases while that of holes decreases
• B. number of holes increases while that of electrons decreases
• C. number of electrons and holes increase equally.
• D. number of electrons and holes increase equally
• E. none of these

Answer 1

The correct option is D number of electrons and holes increase equally

When the temperature of a $\text{n -}$type semiconductor is increased, the electrons with the minimum energy acquire more energy and jumps to the valence band. This increases the number of electrons, also increasing the number of the ‘Holes.’

Option (D) is the correct answer.