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Results tagged with electrostatics
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user 123471
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.
4
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1
answer
5k
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Electric field on a spherical shell with a disk cut out
I came across this problem in Electricity and Magnetism by E.M. Purcell:
A spherical shell of radius $a$ is charged with a uniform surface charge density $\sigma$. A small hole of radius $b << a$ …
- 301
3
votes
1
answer
4k
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Capacitor in a dielectric fluid
In the above problem, it states that the dielectric fluid is "pulled up" by an electric force. However, I don't see why this should be true. The electric field (and therefore any electric force) bet …
- 301