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Equation
       
    Name Energy Density of a Magnetic Field
 
    Equation u = 1 2 ε 0 c 2 B 2
 
    Definition of terms

u = energy density, ε0 = electric constant, c = speed of light, B = magnetic flux density

 
    Comments

  The energy density of a magnetic field is defined as the energy per unit volume, thanks to the magnetic field.

 
    References

The Feynman Lectures on Physics, R P Feynman, R B Leighton, M Sands, Addison-Wesley, 1963

       


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