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Physics - Magnetism Question with Solution | TestHub

PhysicsMagnetismMagnetic Dipole & MomentEasy2 minQB

PhysicsEasynumerical

Two short magnetic dipoles $m_{1}$ and $m_{2}$ each having magnetic moment of $1 A m^{2}$ are placed at point $O$ and $P$ respectively. The distance between $O P$ is $1 m$ . The torque experienced by the magnetic dipole $m_{2}$ due to the presence of $m_{1}$ is $________\times 10^{- 7} N m$

Answer:

1.00

Solution:

$\vec{τ} = {\vec{M}}_{2} \times {\vec{B}}_{1}$

$τ = M_{2} B_{1} \sin 90^{\circ} = 1 \times \frac{μ_{0}}{4 π} \frac{M}{(1)^{3}} \times 1 = 10^{- 7} N m$

Stream:JEESubject:PhysicsTopic:MagnetismSubtopic:Magnetic Dipole & Moment

⏱ 2mℹ️ Source: QB

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