Electrical Properties
Electrical Properties: Overview
This topic covers concepts, such as, Electrical Properties of Solids,Conductors,Insulators etc.
Important Questions on Electrical Properties
Electronic configuration of germanium is 2, 8, 18 and 4. To make it extrinsic semiconductor small quantity of antimony is added. Then
What are diodes and transistors ? For what purpose are they generally used ?
Give reasons: (ii) Silicon on doping with phosphorus forms n-type semiconductor.
Out of which is the best electric conductor?
Give reason: What is the difference between phosphorus-doped and Gallium doped semiconductors?
In terms of dielectric properties, barium titanate is _____.
The electricity produced in polar crystals when mechanical stress is applied on them is called _____.
Pure substances which show conductivity similar to that of silicon and germanium are called _____ conductors.
The electric conductivity of semiconductors _____ with increase of temperature.
If there is a large energy gap between the filled valence band and empty conduction band, the substance act as _____.
What type of semiconductor is formed when is doped with ?
What is doping? What are type and type semiconductors?
What is meant by groups compounds? Give an example.
What type of semiconductor is obtained when silicon is doped with boron?
Explain Piezoelectric effect with a suitable example.
Account for the following:
Silicon is an insulator but silicon doped with phosphorus acts as a semi-conductor.
Solids can be classified into three types on the basis of their electrical conductivities. How will you explain such classification based on band theory?
Solids can be classified into three types on the basis of their electrical conductivities.
Name three types of solids classified on the basis of electrical conductivities.
What is a semiconductor ? Describe the two main types of semiconductors and contras conduction mechanism in them.
