A Current of 4 $\degree$ Determine the Magnitude of the Torque Exerted on the Loop

question 85

Multiple Choice

A current of 4.0 A is maintained in a single circular loop having a circumference of 80 cm.An external magnetic field of 2.0 T is directed so that the angle between the field and the plane of the loop is 20 $\degree$ .Determine the magnitude of the torque exerted on the loop by the magnetic forces acting upon it.

• A)0.41 N.m
• B)0.14 N .m
• C)0.38 N . m
• D)0.27 N .m
• E)0.77 N .m

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