A rigid rectangular loop,which measures 0.30 m by 0.40 m,carries a current of 5.5 A,as shown in the figure.A uniform external magnetic field of magnitude 2.9 T in the negative x direction is present.Segment CD is in the xz-plane and forms a 35° angle with the z-axis,as shown.Find the magnitude of the external torque needed to keep the loop in static equilibrium.
A)1.1 N ∙ m
B)0.73 N ∙ m
C)1.3 N ∙ m
D)1.4 N ∙ m
E)1.6 N ∙ m

Question

A rigid rectangular loop,which measures 0.30 m by 0.40 m,carries a current of 5.5 A,as shown in the figure.A uniform external magnetic field of magnitude 2.9 T in the negative x direction is present.Segment CD is in the xz-plane and forms a 35° angle with the z-axis,as shown.Find the magnitude of the external torque needed to keep the loop in static equilibrium. 
A)1.1 N ∙ m 
B)0.73 N ∙ m 
C)1.3 N ∙ m 
D)1.4 N ∙ m 
E)1.6 N ∙ m

Quizplus · Accepted Answer

The Answer of A rigid rectangular loop,which measures 0.30 m by 0.40 m,carries a current of 5.5 A,as shown in the figure.A uniform external magnetic field of magnitude 2.9 T in the negative x direction is present.Segment CD is in the xz-plane and forms a 35° angle with the z-axis,as shown.Find the magnitude of the external torque needed to keep the loop in static equilibrium. 
A)1.1 N ∙ m 
B)0.73 N ∙ m 
C)1.3 N ∙ m 
D)1.4 N ∙ m 
E)1.6 N ∙ m

A Rigid Rectangular Loop,which Measures 0