The forbidden energy gap of $Ge$ is ....... $eV$.

In good conductors of electricity,the type of bonding that exists is

Read the following statements carefully:
$Y:$ The resistivity of a semiconductor decreases with an increase in temperature.
$Z:$ In a conducting solid,the rate of collision between free electrons and ions increases with an increase in temperature.
Select the correct statement from the following:

The resistance of a semiconductor at $0 \ K$ is:

Write the electronic configuration of $Si$ and $Ge$.

The effect of an increase in temperature on the number of electrons in the conduction band $(n_e)$ and the resistance of a semiconductor will be as follows: