[" 10Those materials in which number of holes in "],[" valence band is equal to number of electrons in "],[" conduction band are called "]

A material with overlapping conduction and valence bands will be

Compare valence band and conduction band.

Write the definition of valence band and conduction band.

If the temperature of semiconductor is increased the number of electrons in the valence band will

Assertion: If there is some gap between the conduction band and the valence band, electrons in the valence band all remain bound and no free electrons are available in the conduction band. Then the material is an insulator. Reason: Resistance of insulators is very low

Assertion: If there is some gap between the conduction band and the valence band, electrons in the valence band all remain bound and no free electrons are available in the conduction band. Then the material is an insulator. Reason: Resistance of insulators is very low

Statement-1: In semiconductors current is obtained due to motion of electrons and holes. Statement-2: Breaking up of covalent bond produces holes in valence band and electrons in conduction band.

What do you mean by valence band, conduction band and forbidden gap?

The electrons in the conduction band and valence band are respectivley called