Question

Ratio of the permittivity of medium to the permittivity of free space is known as

Answer 1

Permittivity:

1. It is also known as electric permittivity.
2. It is a constant of proportionality that lies between electric field intensity and electric displacement.
3. The constant of permittivity is equal to approximately $8.85\times {10}^{-12}$ farad per meter in free space.

Hence, the ratio of the permittivity of the medium is known as dielectric current.