The ratio of electron and hole current in a semiconductor is `(7)/(5)` and the ratio of drift velocities electrons and holes is `(1)/(4)` ,then the ratio of concentrations of electrons and holes will be ?

The ratio of electron and hole currents in a semiconductor is 7/4 and the ratio of drift velocities of electrons and holes is 5/4, then the ratio of concentrations of electrons and holes will be

The contribution in the total current flowing through a semiconductor due to electrons and holes are 3/4 and 1/4 respectively. If the drift velocity of electrons is 5/2 times that of holes at this temperature, then the ratio of concentration of electrons and holes is

The contribution in the total current flowing through a semiconductor due to electrons and holes are 3/ 5 and 2/ 5 respectively. If the drift velocity of electrons is 2 times that of holes at this temperature, then the ratio of concentration of electrons and holes is

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 ?

Distinguish between electrons and holes.

With increase in temperature in an intrinsic semiconductor the ration of conduction electrons and holes is

How the no. of electron and no. of holes are related in intrinsic conductor ?

In a semiconductor diode, reserve bias current is due to drift of free electrons and holes caused by