Question

Q: Electric displacement D is​

Answer 1

Answer:

electric displacement D isdielectric displacement

Answer 2

Explanation:

In physics, the electric displacement, also known as dielectric displacement and usually denoted by its first letter D, is a vector field in a non-conducting medium, a dielectric. The displacement D is proportional to an external electric field E in which the dielectric is placed.

In SI units the proportionality is,

D(r)= other in above pictures

where ε0 is the electric constant and εr is the relative permittivity of the dielectric. In Gaussian units ε0 does not occur and can be put equal to unity in this equation. In vacuum the dimensionless quantity εr = 1 (both for SI and Gaussian units) and D is simply related (SI), or equal (Gaussian), to E. Often D is termed an auxiliary field with E the principal field.