Average Temperatures for France in April. Average temperatures for April at cities throughout France are listed below in degrees Celsius and Fahrenheit. The tables give the normals for maximum and minimum monthly temperatures based on weather data collected from 1981 to 2010.
Permittivity is a measure of how easy or difficult it is to form an electric field inside of a medium. Likewise, permeability is a measure of the ability to form a magnetic field inside of a medium. Permittivity Îµ and Îµ0. Permittivity is determined by how much a medium can polarize in response to an electric field. In cgs units, Îµ is unitless. In SI units, Îµ is in units of Farads/meter. This highlights the fundamental difference between the two measures of permittivity in the different unit systems.
Freebase(4.00 / 1 vote)Rate this definition: In electromagnetism, absolute permittivity is the measure of the resistance that is encountered when forming an electric field in a medium. In other words, permittivity is a measure of how an electric field affects, and is affected by, a dielectric medium.