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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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How to calculate the outside electric field when a off-center charge be inside the thin meta...
Putting a point charge Q inside the thin metallic shell but not the center. How to calculate the electric field outside the shell? Can I use Gauss's law to obtain it? Would the induced charge on the s …
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Volume bound charge and volume bound current
$\rho_b$ stands for volume bound charge and $\vec{J}_b$ stands for volume bound current. I have learned that $\rho_b=-\nabla\cdot\vec{P}$ and $\vec{J}_b=\nabla\times\vec{M}$. Does that mean if the "po …