A hole in a semiconductor is

A hole in a semiconductors is rather different from an electron because it has

If the ratio of the concentration of electron to that of holes in a semiconductor is (7)/(5) and the ratio of current is (7)/(4) then what is the ratio of their drift velocities ?

If the ratio of the concentration of electron to that of holes in a semiconductor is (7)/(5) and the ratio of currect is (7)/(4) then what is the ratio of their drift velocities ?

A positive hole in a semiconductor is

A hole in semiconductor is different from an electron, because it is