# Write a Relation for Polarisation Of a Dielectric Material in the Presence of an External Electric Field. - Physics

Write a relation for polarisation vecPof a dielectric material in the presence of an external electric field vecE .

#### Solution

The relation for polarisation vecPof a dielectric material in the presence of an external electric field vecE

P=chi_eE

where chi_e is a constant characteristic of the dielectric and is known as the electric susceptibility of the dielectric medium.

Concept: Dielectrics and Polarisation
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