permittivity

Materials in which this does not happen have the permittivity of free space.

The coefficient that we need to make it come out right is related to the permittivity of free space.

Permittivity as a function of frequency can take on real or complex values.

Water droplets have a permittivity that is much higher than the surrounding oil.

This is the same as moving toward positive permittivity.

The systems employ insulation materials that have a low permittivity and loss.

More significant, however, a high permittivity allows a greater charge to be stored at a given voltage.

The higher the applied voltage, the lower the permittivity.

The permittivity affects the speed of light in a material:

In a very high permittivity material, electric charges have very little effect on each other.

Commercial bridges for measuring complex permittivity were not available.

The significant interaction (permittivity) occurs with the electric field.

What is the significance of permittivity of free space?

This results in control over material parameters known as permittivity and magnetic permeability.

Interestingly the permittivity of this material, above the plasma frequency can be positive and less than one.

Another, now rather rare and obsolete, term is "magnetic permittivity of vacuum".

The amount of water vapor directly controls the permittivity of the air.

The permittivity of a medium changes with the frequency of the magnetic field.

The permittivity and the loss are dielectric properties of the insulation material.

This is called the relative permittivity or dielectric constant.

The permittivity of ferroelectric class 2 material depends on the applied voltage.

The product of the permittivity and permeability results in the refractive index.

Permittivity can often be easily measured with a capacitor.

In a nonlinear medium, the permittivity can depend on the strength of the electric field.

Relative permittivity is a dimensionless number that is in general complex.