# data[].attributes.headline
Define polarization and electric susceptibility.

# data[].attributes.subject
Define polarization and electric susceptibility.

# data[].attributes.body
A dielectric develops a net dipole moment in the presence of an external field.The dipole moment per unit volume is called polarization.

Electric susceptibility is a constant that indicates the extent of polarization of a dielectric material in an electric field.

# data[].attributes.body
blue arrow--external electric field
green arrow--dipole
it is clearly evident that both the fields are opposing and hence cancel each other.thus net field magnitude decreases

# data[].attributes.headline
How does external electric field reduced in a polarised dielectric

# data[].attributes.subject
How does external electric field reduced in a polarised dielectric

# data[].attributes.body
The “resultant” electric field inside dielectric decreases because dipoles in the dielectric get oriented owing to the applied external electric field. And unlike ideal conductors where there are a lot of free electrons to completely nullify the effect of applied external fields .

# data[].attributes.body
A dielectric with polar molecules develops a net dipole moment in the external field.In absence of any external field ,the different permanent dipoles are oriented randomly due to thermal agitation ;so the total dipole moment is 0.when external field is applied, the individual dipole moments tend to align with the field

net dipole moment is in the direction of electric field,i.e.,the dielectric is polarised.

# data[].attributes.headline
What are polar and non polar molecules? give examples

# data[].attributes.subject
What are polar and non polar molecules? give examples

# data[].attributes.body
When multiple atoms are bonded to each other, a molecule is formed.
These bonds can either be polar when the electrons in the molecule are shared unequally or non-polar when the electrons are shared equally.

Eg- HCL (polar molecules)

O2(non polar molecules)

# data[].attributes.body
Dielectrics are non-conducting substances having a very minute number of charge carriers .

# data[].attributes.headline
Difference in the behavior of a conductor and di-electric in an external electric field

# data[].attributes.subject
Difference in the behavior of a conductor and di-electric in an external electric field

# data[].attributes.body
In an electric field, in a conductor, the charge distribution in the conductor re-adjusts itself so that the net electric field within the conductor becomes zero, while in a di-electric, the external electric field induces a net dipole moment. The electric field, due to this induced dipole moment, opposes, but does not cancel the external electric field.