Recent content by Pdawgg

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    Understanding Band Theory: The Difference Between Conductors and Insulators

    Since there's no way to delete: the answer is obvious. Of course the electrons will gain kinetic energy: they are trying to minimize their potential energy...
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    Understanding Band Theory: The Difference Between Conductors and Insulators

    My question is as follows: if you place an insulator into an applied field, the only thing that will happen is that the potential energy of each band will shift, according to the potential that it is in. Why is this exact same thing not what takes place in conductors? Why do the electrons at the...
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    (Challenging) Conceptual Question on Induced Charge on Conductor

    Love it. Thanks for the help. Just to re-iterate to make sure that I understand: 1. Both the sphere and the cube are equipotential surfaces. 2. Therefore, ΔV is constant between any point on the the sphere and any point on the surface. 3. We know from electrostatic boundary conditions that...
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    (Challenging) Conceptual Question on Induced Charge on Conductor

    My thoughts were: the E-field produced by a uniformly charged sphere will be the same as the E-field produced by a point charge, by Gauss's Law. As long as the sphere remains uniformly charged, this is true, isn't it? If it were a uniformly charged insulating sphere, I think this would be the...
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    (Challenging) Conceptual Question on Induced Charge on Conductor

    Here is the question that we have been debating for the past day or so: Take a conducting cubic box and center a conducting sphere with charge +q inside of it. Will the induced charge density on the sphere be uniform or not?My gut instinct is no. The cube and sphere have different symmetries...
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