Problem: A rigid, rectangular loop, which measures 0.30 m x 0.40 m, carries a current of 7.7 A, as shown. A uniform external magnetic field of magnitude 2.6 T in the negative x-direction is present. Segment CD is in the xz-plane and forms a 33° angle with the z-axis, as shown. The magnetic moment of the loop is closest to? A) 0.31 Am2 B) 0.77 Am2  C) 0.46 Am2 ​ D) 0.62 Am2 ​ E) 0.92 Am2 ​

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Problem Details

A rigid, rectangular loop, which measures 0.30 m x 0.40 m, carries a current of 7.7 A, as shown. A uniform external magnetic field of magnitude 2.6 T in the negative x-direction is present. Segment CD is in the xz-plane and forms a 33° angle with the z-axis, as shown. The magnetic moment of the loop is closest to?

A) 0.31 Am2

B) 0.77 Am

C) 0.46 Am

D) 0.62 Am

E) 0.92 Am

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Force and Torque on Current Loops concept. You can view video lessons to learn Force and Torque on Current Loops. Or if you need more Force and Torque on Current Loops practice, you can also practice Force and Torque on Current Loops practice problems.

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Based on our data, we think this problem is relevant for Professor Hawkins' class at FIU.