[" 16.The conductivity of a semiconductor increases with "],[" increase in temperature because "]

The conductivity of semiconductor increases with increase in temperature because

Why does conductivity of a semiconductor increase with rise in temperature?

Why does the conductivity of a pure semiconductor increases with rise in temperature ?

Assertion (A) : The electrical conductivity of a semiconductor increases with increase in temperature. Reason (R ) : With increase in temperature, large number of electrons from the valence band can jump to the conduction band.

Assertion (A) : The electrical conductivity of a semiconductor increases with increase in temperature. Reason (R ) : With increase in temperature, large number of electrons from the valence band can jump to the conduction band.