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The loop ABCDEFGH, shown in figure, is carries a current i. A uniform magnetic field $\vec{B}$ exists in that region of space as shown in figure. Then magnetic torque experienced by the loop is,
[Given, AB = BC = CD =l and EF = FG = GH = l/2]

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detailed solution

Correct option is C

Magnetic dipole moment, of the loop, M=l2-l22i=3l2i4 and it is inward. ∴τ=MBsin90o=3i l2B4

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The loop ABCDEFGH, shown in figure, is carries a current i. A uniform magnetic field B→ exists in that region of space as shown in figure. Then magnetic torque experienced by the loop is, [Given, AB = BC = CD =l and EF = FG = GH = l/2]

Remember concepts with our Masterclasses.

Ready to Test Your Skills?

free study material

The loop ABCDEFGH, shown in figure, is carries a current i. A uniform magnetic field $\vec{B}$ exists in that region of space as shown in figure. Then magnetic torque experienced by the loop is,
[Given, AB = BC = CD =l and EF = FG = GH = l/2]