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.

Options

A. If both `(A)` and `(R)` are correct, and `(R)` is the correct explanation of `(A)`
B. If both `(A)` and `(R)` are correct, but `(R)` is not the correct explanation of `(A)`
C. If `(A)` is correct, but `(R)` is incorrect.
D. If both `(A)` is incorrect, but `(R)` is correct.

Answer

A