Three different orientations of a magnetic dipole moment in a constant magnetic field are shown below. Which orientation results in the largest magnetic torque on the dipole ?

The orientation b has the largest magnetic torque.

Explanation:

As the complete question is not given, the complete question is attached herewith

From the diagram

Also the angles for the 3 orientations are given as

Now as the torque τ is given as

As the value of μ and B is same so value of τ is maximum for sin θ is maximum so

So the orientation b has the largest magnetic torque.

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explanation: