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nitin singh Grade: 12
        

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

please explain this equation.

6 years ago

Answers : (2)

Rathod Shankar AskiitiansExpert-IITB
69 Points
										

The electric constant0) is a constant.


it appears Coulomb's law can be given as:


 F = \frac{1}{4 \pi \varepsilon_0} \ \frac{|q| |Q|}{r^2}

\varepsilon_0 = \frac{1}{\mu_0 c^2}

here μ0 = 4π × 10−7 N/A2

\varepsilon_0 = \frac{10^7}{4\pi\,c^2} =  8.854\;187\;817... 10^{-12}
ε0=The permittivity of empty space
   = equal to 1 in centimeter-gram-second electrostatic units and to 107/4πc2 farads permeter         = 8.854 × 10-12 farad per meter 


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6 years ago
harini desiraju
31 Points
										

the terms electric constant and magnetic constant are introduced while defining coloumb's inverse square law.These are used as proportionality constants in the fields of electricity and magnetism respectively.I am not aware of the derivation,but can tell u the relation between 'c' and these constants. light is an electromagnetic wave.So,its speed should describe the nature of both electric and magnetic waves. Thus we can accept this relation.(c2=1/electric const. * magnetic const.)

6 years ago
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