Permittivity of free space: The dielectric constant is always greater

The dielectric constant is always greater than or equal to 1.0. This means the E-field in Equation [2] is always reduced relative to what the E-field would be in free space [Equation 1]. The permittivity is a measure of this reduction. The permittivity of common materials is given in Table 1. TABLE I. Common Values for the Dielectric Constant. Permittivity is a fundamental concept in physics, particularly in electromagnetism, that characterises how a material responds to the presence of an electric field. It plays a crucial role in understanding the behaviour of electric fields, capacitors, dielectrics, and electromagnetic waves. In this article, we will delve into the definition, detailed concepts, formulas, examples, values, and applications of permittivity in physics. Learn the difference between permittivity and permeability, two measures of electromagnetic properties of materials. Find out the values of permittivity and permeability of free space and other substances. Permittivity of Free Space Relative Permittivity Let's dicuss these types as below: Permittivity of Free Space (ε₀) The resistivity offered by the free space is the lowest and is the fundamental constant, it is referred as permittivity of free space and is denoted by ε₀. It has a value of 8.85 10-12 Farad/meter.