Classification of metals,conductors and semiconductors|On the basis of energy band

Distinguish between conductor (or metals), semiconductors and insulators on the basis of theur energy bands.

An example for metallic conductor and semiconductor is

(a) Define ferromagnetism and ferrimagnetism. (b) Differentiate between metals, insulators and semiconductors on the basis of band theory .

(i) wirte two difference among conductors semiconductor and isulator on the basic of energy band diagram (ii) in a p-n juction diode what is the change in the width of the depletion layer when the diode is forward bias respectively

Distinguish between intrinsic and extrinsic semi-conductors on the basis of energy band diagram.

Distinguish between n-type and p-type semiconductors on the basis of energy-band diagram.