A Flat Rectangular Loop of Wire Carrying a 4 $\vec { B }$

A flat rectangular loop of wire carrying a 4.0-A current is placed in a uniform 0.60-T magnetic field.The magnitude of the torque exerted on this loop when the plane of the loop makes a 30° angle with the $\vec { B }$ field is measured to be 1.1 N ∙ m.What is the area of this loop?

A) 0.20 m²
B) 0.40 m²
C) 0.26 m²
D) 0.80 m²
E) 0.53 m²

Correct Answer:

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