Two short magnetic dipoles m 1 and m 2 each having magnetic moment of 1 Am 2 are placed at point O and P respectively. The distance between O P is 1 meter. The torque experienced by the magnetic dipole m 2 due to the presence of m 1 is × 10-7 Nm.

Question

Two short magnetic dipoles m 1 and m 2 each having magnetic moment of 1 Am 2 are placed at point O and P respectively. The distance between O P is 1 meter. The torque experienced by the magnetic dipole m 2 due to the presence of m 1 is × 10-7 Nm. (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

<img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/physics/e11d85ccc9b3695b30dcfccf12087f20-.png" /> vecτ= M 2 × B 1 τ= M 2 B 1 sin 90° =1 × (μ0/4 π) ( M 1/(1)3) 1 =10-7 N . m

Q. 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 $OP$ is $1$ meter. The torque experienced by the magnetic dipole $m_{2}$ due to the presence of $m_{1}$ is _____ $\times 1 0^{- 7} N m$ .

$τ = M_{2} \times B_{1}$
$τ = M_{2} B_{1} sin 9 0^{\circ}$
$= 1 \times \frac{μ _{0}}{4 π} \frac{M _{1}}{( 1 ) ^{3}} 1$
$= 1 0^{- 7} N . m$

Q. Two short magnetic dipoles m1​ and m2​ each having magnetic moment of 1Am2 are placed at point O and P respectively. The distance between OP is 1 meter. The torque experienced by the magnetic dipole m2​ due to the presence of m1​ is _____×10−7Nm.

τ=M2​×B1​ τ=M2​B1​sin90∘ =1×4πμ0​​(1)3M1​​1 =10−7N.m

Q. 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 $OP$ is $1$ meter. The torque experienced by the magnetic dipole $m_{2}$ due to the presence of $m_{1}$ is _____ $\times 1 0^{- 7} N m$ .

$τ = M_{2} \times B_{1}$
$τ = M_{2} B_{1} sin 9 0^{\circ}$
$= 1 \times \frac{μ _{0}}{4 π} \frac{M _{1}}{( 1 ) ^{3}} 1$
$= 1 0^{- 7} N . m$