Electric field inside conductor

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When we connect a battery across a loop of wire having some finite resistance there comes into picture an electric field E which is empirically given by J/sigma.(sigma==>conductivity).
but how can there exist an electric field inside a conductor??We had already learnt that electric
conductor inside a conductor is zero.please explain.
(reference griffiths -- electrodynamics)
 

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  • #2
Doc Al
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We had already learnt that electric
conductor inside a conductor is zero.
That's only true for the case of electrostatic equilibrium. When you apply fields and have moving charges, that statement no longer applies.
 

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