Question

What is the difference between a conductor and insulator and a semiconductor using energy band digram?

Answer 1

HOLA BUDDY....

here is your answer-------->>>>

Conductors are the substances which allow the electricity to pass through them while insulators resist electricity. A conductor is something which allows electric current to flow through it freely whereas an insulator prevents any electric current flowing through it.

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Answer 2

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   Conductor

   The conductor are those substance which have valence electron loosely in contact with the nucleus. Due to which they act as free carriers of electronic charge. In a very good conductor nearly 10^22 free electron are present per unit volume. It resistivity is nearly 10^-6 ohm-centimetre(ohm-cm).

   Insulator

   The insulator are those substance which have very few free electrons. In fact a perfect insulator will have no free electron,and its resistivity will be infinite .pratically in the nature no substance is perfectly insulator at room temperature. A very good insulator is as mica has a resistivity of the order of 10^13 ohms - centimetre.

   Semiconductor

The semiconductor which have resistivity between the conductor and the insulator are called semiconductors. The best semiconductor are Germanium,Silicon,Selenium etc.In the semiconductor the number of free electron per unit volume is the order of 10^13.

Hence it resistivity lies between 10 to 100 ohm - centimetre.Apart this there is are some more difference between the conductor and semiconductor. When the temperature of the conductor is increased its resistivity increase.

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