THEORY QUESTION: is the electrostatic force on a charge felt behind another charge

  1. Say there is are three hypothetical infinite parallel planes with charges on it. So lets imagine the three planes from left to right, or planes one, two and three.

    Plane-three is fixed to the reference frame. Plane-one and plane-two have a fixed separation distance between each other, but is movable with respect to the reference frame and plane-three (while maintaining the parallel relationship).

    If plane-one is positive charge, plane-two is negative charge and plane-three is positive charge, does plane-one experience electrostatic force due to plane-three directly (or is it shielded)? Is the net electrostatic force on the plane-one and plane-two 'movable rigid body' simply that between plane-two and plane-three (i.e. attraction in this case) or will the charge on plane-one somehow neutralize or reduce the attraction in this case?

    In other words I am wondering if electrostatic forces are felt through other charges or whether the forces effectively become shielded to a degree?
     
  2. jcsd
  3. Re: THEORY QUESTION: is the electrostatic force on a charge felt behind another charg

    The superposition principle states that all fields simply get overlayed. There is no shielding. The only thing that can diminish the field is electrostatic induction.
     
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