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Results tagged with electrostatics
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user 85642
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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Dipolar moment in a volume differential
Imagine there is a volume of a neutral dielectric. An electric field has been applied so the it is polarized. The definition is its net dipolar moment is
$ \vec{p}^{\,}= \int \rho \vec{r}^{\,} dv $
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Defining Bessel functions $J_{v}(x)$ for real positive variable $x$?
I've been reading Zangwill's book. The topic of laplace equation in cylindrical coordinates. He proposes defining $J_{v}(x)$ only for $x\geq 0$. He defines it like that but I wonder if there's a conse …
- 133
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Understanding zero field inside a conductor?
Imagine a neutral conductor of any shape, the charges are randomly distribuited among the object. No way we can say the electric field inside is zero. If I'm wrong, then what can we say about the elec …
- 133
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Sign mistake calculating electrostatic potential energy formula! [duplicate]
I have a problem calculating the electrostatic potential energy.
I rely on these equations coming from mechanics:
\begin{equation}
U_{B}-U_{A} = -W_{A \ \rightarrow \ B} (done\ by \ the \ field \ f …
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