Question

1) Give reason : Electrical conductivity of silicon increases with increase in
temperature.​

Answer 1

Answer:

When the temperature in increased the forbidden gap between the two bands becomes very less and the electrons move from the valence band to the conduction band. Thus some electrons become free to move within the structure. This increases the conductivity of the material.

Answer 2

Explanation:

When the temperature in increased the forbidden gap between the two bands becomes very less and the electrons move from the valence band to the conduction band. Thus some electrons become free to move within the structure. This increases the conductivity of the material.