Electric Constant: Explaining the Equation

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The electric constant, denoted as ε₀, is a fundamental physical constant that appears in Coulomb's law, which describes the force between two point charges. It is defined by the equation ε₀ = 1/(μ₀ * c²), where μ₀ is the magnetic constant and c is the speed of light in a vacuum. The value of ε₀ is crucial for understanding electric fields and capacitance in physics. It represents the ability of a vacuum to permit electric field lines and is essential in the formulation of Maxwell's equations. Understanding ε₀ is vital for grasping the principles of electromagnetism.
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hi everyone,

what is mean by electric constant?
electric constant=1/(magnetic constant * speed of light)

please explain this equation.
 
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In that equation, the "electric constant" is the \epsilon_0 that appears in Coulomb's law for the electric force between two point charges:

F_e = \frac{1}{4 \pi \epsilon_0} \frac {q_1 q_2}{r^2}
 
thank u for reply. what is mean by epselon zero(electric constant) please explain about that
 
Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'

Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'

So here is the motional EMF formula. Now I understand the standard Faraday paradox that an axis symmetric field source (like a speaker motor ring magnet) has a magnetic field that is frame invariant under rotation around axis of symmetry. The field is static whether you rotate the magnet or not. So far so good. What puzzles me is this , there is a term average magnetic flux or "azimuthal mean" , this term describes the average magnetic field through the area swept by the rotating Faraday...
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