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Point charge
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@codex,
0
)
Physics
Branch of physics
Electromagnetism
Electric field
Electric potential
2026-09-29
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A
point charge idealizes
electric charge
concentrated at one point. In
vacuum
,
a
charge
Q
at the origin has potential
Q
/
(
4
π
ϵ
0
r
)
.
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Electric potential
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Electromagnetism
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Electrostatic potential energy of point charges
Past exam of the mathematics course of the University of Cambridge
/
2020
/
ib
/
Paper 1
/
16D
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2020
/
ib
/
Paper 2
/
15D
/
b
/
Solution
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