The electrical conductivity of a semiconductor increases with increase in temperature because
A. The mobility of the carriers increases
B. The carrier concentration increases
C. Both carrier concentration and mobility increases
D. Thermal energy of electrons increases
Answer: Option B
Related Questions on Materials and Components
For making a capacitor it is better to have a dielectric having
A. High permittivity
B. Low permittivity
C. Permittivity same as that of air
D. Permittivity which is neither high nor low
As the viscosity of a liquid increases, the relaxation time
A. Remains constant
B. Increases
C. Decreases
D. First decreases then increases

Join The Discussion