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Physics Formulas
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Electromagnetism
> Electrical Capacitance
Electrical Capacitance
Electrical Capacitance is given by:
Corresponding units:
farad(F) =
coulomb
(C) · volt(V)
If
V
12
is the voltage between two conductors 1 and 2, the capacitance will be:
C
=
Q
/
V
12
For a
parallel plate capacitor
the capacitance is given by:
S
: the area of the plates
d
: the distance between the plates
V
12
: the voltage, which can be determined by
For a
cylindrical capacitor
the capacitance is given by:
L
: the length of the cylinder
b
: the outer radius
a
: the inner radius
ε
: the permittivity of the dielectric material in between
V
ab
: the voltage, which can be determined by:
For a
spherical capacitor
the capacitance is given by:
R
i
,
R
0
: inner and outer radius
ε
: the permittivity of the dielectric material in between.
V
io
: the voltage, which can be determined by:
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