10 / 1116
• Consider charge
q
in circular motion:
• Rotating charged sphere with uniform charge:
Magnetic moment:
r
v
q
A
Current:
r2
qv
t
q i
π
=
∆
∆=
S
m2
q
=µ
Spin!
mvr
L , L
m2
q iA
=
= =µ
|
|
10 / 1116
• Consider charge
q
in circular motion:
• Rotating charged sphere with uniform charge:
Magnetic moment:
r
v
q
A
Current:
r2
qv
t
q i
π
=
∆
∆=
S
m2
q
=µ
Spin!
mvr
L , L
m2
q iA
=
= =µ