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Equation
       
    Name

Faraday Induction Law

 
    Equation
function of E . d ⁢ I = - d ⁢ φ d ⁢ t E . d I = - L d ⁢ I d ⁢ t
function of
 
    Definition of terms

E = electric field, dl = infinitesimal path round a closed circuit, f = magnetic flux, L = self-inductance, I = current

 
    Comments

  The Faraday induction law is an analogue of one of the Maxwell equations. It links the integral of the electric field to the magnetic flux.

  Using the definition that the magnetic flux is equal to the self-inductance multiplied by the current, we obtain the second equation, which is valid for an isolated circuit only.

 
    References

Electromagnetism: Principles and Applications, P Lorrain, D R Corson, W H Freeman and Co., 1978

Electricity and Magnetism, B I Bleaney, B Bleaney, OUP, 2nd edition, 1965

       


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