Electric Field at Radius r from Concentric Conducting Spherical Shells?

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SUMMARY

The electric field at a radius r from the center of two concentric conducting spherical shells, with radii a and b (where b > a) and charges +Q and -Q, is zero for any point where r > b. According to Gauss's Law, the total enclosed charge within a Gaussian surface at this radius is zero, leading to zero electric flux and consequently no electric field in that region. This conclusion is confirmed by multiple participants in the discussion.

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  • Understanding of Gauss's Law
  • Familiarity with electric fields and charge distributions
  • Knowledge of conducting materials and their properties
  • Basic concepts of spherical symmetry in electrostatics
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Chronos000
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Homework Statement



The question I'm struggling with is to find the electric field at radius r from the centre of two conducting spherical shells of radius a and b (b>a), and with charge +Q and -Q.

Specifically I am not sure if there is no electric field at r>b as if you use gauss' law, the total charge within the gaussian surface is 0.
 
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Chronos000 said:
Specifically I am not sure if there is no electric field at r>b as if you use gauss' law, the total charge within the gaussian surface is 0.

This is correct. The total enclosed charge is 0, so the flux through any Gaussian surface with r>b will be 0.
 
thanks for confirming
 

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