The following band-energy diagram represents:

In a $p-$type semiconductor, which of the following statements is true?

$A$ hole in a $P-$type semiconductor is

Pure $Si$ at $500\,K$ has equal number of electron $(n_e)$ and hole $(n_h)$ concentrations of $1.5 \times 10^{16}\,m^{-3}$. Doping by indium increases $n_h$ to $4.5 \times 10^{22}\,m^{-3}$. The doped semiconductor is of

Which of the following statements is true for an $N$-type semiconductor?

The semiconductors are generally