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Magnetic field
Electric charge in magnetic field
radius of circular path of electron
r =
m
x
Å
nm
μm
mm
cm
dm
m
km
n mile
in
ft
yd
electron mass
m
e
=
9.109E-31
kg
velocity of electron
v =
m/s
x
m/s
km/h
cm/s
ft/s
kn
elementary electric charge
e =
1.602E-19
C
magnetic induction
B =
T
x
nT
μT
mT
T
1. Define values of all variables, besides sought quantity
2. Change units if necessary
3. Click "Calculate"
