Semiconductors ...

Basic materials used in the present solid state electronic devices like diode, transistor, ICs, etc are

Depletion region (space charge) is formed because

The conductivity of P –type semiconductor is due to

In an N-P-N transistor, P-type crystal is

Domestic power supply in India is

In the case of metals the valence and conduction bands have

In a p-n junction, as the diffusion process continues the width of the depletion zone

An N-type Ge is obtained on doping the Ge- crystal with

A p- type semiconductor can be obtained by adding

In a semiconductor crystal, if current flows due to breakage of crystal bonds, then the semiconductor is called