Semiconductor D...

Which of the following is a crystalline solid?

Atomic packing factor for a force centred cubic cell is

With the fall of temperature, the forbidden energy gap of a semiconductor

In a semiconductor, the forbidden energy gap between the valence band and the conduction band is of the order is

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

Three semiconductors are arranged in the increasing order of their energy gap as follows. The correct arrangement is

The Fermi level of an intrinsic semiconductor is pinned at the centre of the band gap. The probability of occupation of the highest electron state in valence band at room temperature, will be

In the half wave rectifier circuit operating from 50 hz mains frequency, the fundamental frequency in the ripple would be

Which filter circuit is better?

Two identical p-n junctions may be connected in series with a battery in three ways as shown in the adjoining figure. The potential drop across the p-n junctions are equal in