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wasi-uz-zaman
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Hi please tell me physical significance of permittivity of free space, how can we explain its value having unit of F/m
If this is a new topic, you need to start a new thread.helter skelter said:Changing the topic,in coulumbs law
1\4 pi epselon = 9x10^9 but on solving I'm not getting the same
Permittivity of free space, also known as the electric constant, is a physical constant that describes the relationship between electric fields and electric charges in a vacuum. It is denoted by the symbol ε0 and has a value of approximately 8.854 x 10^-12 farads per meter (F/m).
Coulomb's law, which describes the force between two electric charges, includes the permittivity of free space as a constant. It is represented by the equation F = k(q1q2)/r^2, where k is the Coulomb constant and (q1q2)/r^2 is the electric field strength. This shows the direct relationship between permittivity of free space and electric fields.
Permittivity of free space is a fundamental constant in electromagnetism that helps to describe the behavior of electric fields and their interactions with electric charges. It is used in many equations and laws, such as Gauss's law and Maxwell's equations, which are essential in understanding and predicting the behavior of electromagnetic waves and fields.
The permittivity of a material, denoted by the symbol ε, is a measure of how easily a material can be polarized by an electric field. It is usually higher than the permittivity of free space, as the presence of atoms and molecules in a material can affect its ability to be polarized. The relationship between the two is shown by the equation ε = ε0εr, where εr is the relative permittivity or dielectric constant of the material.
No, permittivity of free space is a constant that is the same everywhere in the universe. It cannot be changed or manipulated by any external factors. However, the permittivity of a material can be altered by changing its temperature, pressure, or composition.