Recent content by Pdawgg
-
P
Graduate 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...- Pdawgg
- Post #2
- Forum: Atomic and Condensed Matter
-
P
Graduate 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...- Pdawgg
- Thread
- Band Band structure Band theory Conduction Theory
- Replies: 1
- Forum: Atomic and Condensed Matter
-
P
Graduate (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...- Pdawgg
- Post #5
- Forum: Electromagnetism
-
P
Graduate (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...- Pdawgg
- Post #3
- Forum: Electromagnetism
-
P
Graduate (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...- Pdawgg
- Thread
- Charge Conceptual Conducting spheres Conductor Induced Induced charge
- Replies: 5
- Forum: Electromagnetism