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Physics
Physics
Problem
When a magnetic dipole with magnetic moment
μ
\mu
μ
makes an angle
θ
\theta
θ
with a uniform magnetic field of magnitude
B
B
B
, which expression gives the magnitude of the torque acting on the dipole? a)
τ
=
μ
B
\tau = \mu B
τ
=
μ
B
b)
τ
=
μ
B
cos
θ
\tau = \mu B\cos\theta
τ
=
μ
B
cos
θ
c)
τ
=
μ
B
sin
θ
\tau = \mu B\sin\theta
τ
=
μ
B
sin
θ
d)
τ
=
2
μ
B
sin
θ
\tau = 2\mu B\sin\theta
τ
=
2
μ
B
sin
θ
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