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Electrical permittivity...in mathematical terms, i.e I need the derivation...WITHOUT using 'curls'.
Didn't find it online.
Didn't find it online.
Dadface said:The permittivity of a medium is a constant that is connected to the electrical properties of that medium.Amongst other places it appears in Coulombs law and along with permittivity**( a magnetic constant ) the formula for the speed of light.
Bob S said:In mks units, the capacitance of a rectangular capacitor of relative permittivity e, separation d, and area A is
C = e e0 A/d Farads
where e is relative permittivity (unitless)
e0 is the permittivity of free space, 8.85 x 10-12 Farads per meter.
**The magnetic constant is permeability.
Permittivity is a physical property that measures the ability of a material to store electric charge in an electric field. It is represented by the symbol ε and is measured in units of farads per meter (F/m).
Permittivity is directly related to capacitance. It is a measure of how much charge a material can hold in an electric field, and capacitance is a measure of how much charge a capacitor can hold. The higher the permittivity, the higher the capacitance.
The two main factors that affect permittivity are the type of material and the presence of an external electric field. Different materials have different permittivity values, and the strength of the electric field can also impact the permittivity of a material.
Permittivity plays a crucial role in the propagation of electromagnetic waves. It determines the speed at which the waves travel through a material and also affects how much the waves are attenuated. High permittivity materials can slow down and absorb electromagnetic waves, while low permittivity materials allow for faster and less attenuated wave propagation.
Permittivity is important in electronic devices because it affects the performance and design of these devices. The choice of materials with specific permittivity values can impact the capacitance and signal propagation in circuits, while also affecting the efficiency and speed of electronic components.