What is polarisation?
(N/A) Polarisation is the process in which the positive and negative charges of a non-polar molecule or atom are displaced in opposite directions by an external electric field.
When a dielectric material is placed in an external electric field $E_0$, the centers of positive and negative charges are shifted.
This results in the formation of induced dipole moments within the material.
The net dipole moment per unit volume is known as the polarisation density or simply polarisation, denoted by $P$.
Mathematically, $P = \chi_e E$, where $\chi_e$ is the electric susceptibility of the dielectric material.
When a dielectric material is placed in an external electric field $E_0$, the centers of positive and negative charges are shifted.
This results in the formation of induced dipole moments within the material.
The net dipole moment per unit volume is known as the polarisation density or simply polarisation, denoted by $P$.
Mathematically, $P = \chi_e E$, where $\chi_e$ is the electric susceptibility of the dielectric material.
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View Solution$Assertion \; (A)$: Non-polar materials do not have any permanent dipole moment.
$Reason \; (R)$: When a non-polar material is placed in an electric field,the centre of the positive charge distribution of its individual atom or molecule coincides with the centre of the negative charge distribution.
In the light of the above statements,choose the most appropriate answer from the options given below:
$Reason \; (R)$: When a non-polar material is placed in an electric field,the centre of the positive charge distribution of its individual atom or molecule coincides with the centre of the negative charge distribution.
In the light of the above statements,choose the most appropriate answer from the options given below:
Which of the following is the dimensional formula for electric polarisation?
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