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Electrostatics is concerned with the electrical fields and scalar potentials of stationary electrical charges and charge distributions. Use this for questions about electromagnetic situations in which currents and magnetic fields are absent, otherwise use the [electromagnetism] and/or [magnetic-fields] tags.

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What are eigenfunctions in a box which includes two kinds of medium?

I have to solve a problem of mathematical physics. There is a simple case which can inspire me to solving a more complex case. Considering a metal box in 2D $0<x<a$ and $0<y<b$. And there are two ki …
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2 votes

What determines how much electrical charge an object can hold?

It should be associated with the work function, which is the minimum thermodynamic work (i.e. energy) needed to remove an electron from a solid to a point in the vacuum immediately outside the solid s …
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6 votes

Why is the electric field inside a conductor zero in equilibrium?

As Mostafa says, it is macroscopically at equilibrium, not necessarily microscopically. There may be one misunderstanding you have, which is about "surface". I will talk about it later. In my opinio …
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1 vote

Non-symmetrical electrostatics problem

In fact, an infinite non-grounded conductor is not a well-defined boundary condition, especially in your case. The electric potential at infinite point cannot be defined as zero. The only well-defined …
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