semiconductor

The resistivity of a semiconductor --------conductor and insulators

• more than that of

• lies between that of

• less than that of

• none of the above

A material that has low resistance is called

• insulator

• conductor

• semiconductor

• none of the above

which among the following is not an insulator?

• wood

• plastic

• silver

• paper

The energy gap is maximum in

• conductor

• semiconductor

• insulators

• superconductor

The valence electrons will exist at

• valence band

• middle of valence and conduction band

• will not exist

• conduction band

In a semiconductor, the energy gap between the valence band and conduction band is about ----------------

• 5 eV

• 10 eV

• 15 eV

• 1 eV

A semiconductor generally has--------------valence electrons

• 2

• 3

• 4

• 6

Best example of semi-conductor is

• 
• 
• 
•