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Electromagnetism
> Electric Potential of Only One Charge
Electric Potential of Only One Charge
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The electric potential of only one charge is given by:
,
where
R
is the distance between the charge
q
and the point where we measure our voltage. So the only thing that has an influence on voltage is the distance
R
. The bigger
R
becomes, the smaller will
V
be.
If we want to measure the voltage from point P1 to point P2, then the voltage can be determined by:
,where
R
p1
is the distance from the charge
q
to P1, and
R
p2
is the distance from
q
to P2.
From the equation below
we can conclude that the bigger the difference between
R
p1
and
R
p2
becomes, the greater become the voltage between them.
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