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Electric conduction
Free electrons velocity in vacuum
velocity of electron
v =
m/s
x
m/s
km/h
cm/s
ft/s
kn
velocity of light in free space
c =
3E8
m/s
elementary electric charge
e =
1.602E-19
C
accelerating voltage
U =
V
x
nV
μV
mV
V
kV
MV
electron mass
m
e
=
9.109E-31
kg
1. Define values of all variables, besides sought quantity
2. Change units if necessary
3. Click "Calculate"