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Electric field
Interaction force of two point charges
interaction force of two point charges
F =
N
x
μN
mN
N
kN
MN
dyn
gf
kgf
tf
value of one point charge
Q
1
=
C
x
pC
nC
μC
C
kC
A·h
value of another point charge
Q
2
=
C
x
pC
nC
μC
C
kC
A·h
relative dielectric capacitivity
ε =
electric constant
ε
0
=
8.854E-12
F/m
distance between charges
r =
m
x
Å
nm
μm
mm
cm
dm
m
km
n mile
in
ft
yd
1. Define values of all variables, besides sought quantity
2. Change units if necessary
3. Click "Calculate"