Question

What is electric displacement vector?? Give it's formula. ​​

Answer 1

Answer:

Ans. Electric displacement D = ε0E + P. In this case, ε0 is vacuum permittivity, E is electric field, and P is polarization density.

Answer 2

Answer:

Electric displacement, denoted by D, is the charge per unit area that would be displaced across a layer of conductor placed across an electric field. It is also known as electric flux density.

Electric displacement is used in the dielectric material to find the response of the materials on the application of an electric field E. In Maxwell’s equation, it appears as a vector field.

The SI unit of electric displacement is

$\bold{Coulomb \: per \: meter \: square (C {m}^{-2}).}$

The mathematical representation is as follows:

$D = \in_0E+P$

Where,

ϵ0: Vacuum permittivity

P: Polarization density

E: Electric field

D: Electric displacement field