$A$ semiconductor doped with a donor impurity is

When the conductivity of a semiconductor is only due to the breaking of covalent bonds,the semiconductor is called:

The typical ionisation energy of a donor in silicon is.....$eV$

If $N_h$ and $N_e$ are the numbers of holes and conduction electrons in an extrinsic semiconductor,respectively,then:

When an impurity is doped into an intrinsic semiconductor,the conductivity of the semiconductor

If a semiconductor has an intrinsic carrier concentration of $1.41 \times 10^{16} \, m^{-3}$,when doped with $10^{21} \, m^{-3}$ phosphorus,then the concentration of holes at room temperature will be