1 Answer
Susceptibility in dielectrics refers to how easily a material can become polarized when an electric field is applied to it. It is a measure of the material's ability to be polarized, which means how much the positive and negative charges inside the material shift or align in response to the external electric field.
In simpler terms, susceptibility tells us how much a dielectric material "reacts" to the applied electric field by becoming polarized.
Mathematically, susceptibility (\(\chi_e\)) is related to the electric permittivity (\(\epsilon\)) of the material. The permittivity is a measure of how easily the material allows electric field lines to pass through it. The electric susceptibility is given by:
\[
\chi_e = \frac{\epsilon_r - 1}{\epsilon_r}
\]
Where:
A high susceptibility means the material is more easily polarized, while a low susceptibility means it is less affected by the applied field. The dielectric materials with higher susceptibility are generally better at storing electrical energy.
In simpler terms, susceptibility tells us how much a dielectric material "reacts" to the applied electric field by becoming polarized.
Mathematically, susceptibility (\(\chi_e\)) is related to the electric permittivity (\(\epsilon\)) of the material. The permittivity is a measure of how easily the material allows electric field lines to pass through it. The electric susceptibility is given by:
\[
\chi_e = \frac{\epsilon_r - 1}{\epsilon_r}
\]
Where:
- \(\epsilon_r\) is the relative permittivity (or dielectric constant) of the material.
- \(\chi_e\) is the electric susceptibility.
A high susceptibility means the material is more easily polarized, while a low susceptibility means it is less affected by the applied field. The dielectric materials with higher susceptibility are generally better at storing electrical energy.