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A Round Loop of Diameter 12 Cm, Carrying a Current

Question 6

Multiple Choice

A round loop of diameter 12 cm, carrying a current of 0.40 A, is placed inside a magnetic field A round loop of diameter 12 cm, carrying a current of 0.40 A, is placed inside a magnetic field = 0.20 T î + 0.40 T ĵ. The normal to the loop is parallel to the unit vector = -0.60 î - 0.80 ĵ. What is the potential energy of the loop? A) -4.5 × 10<sup>-3</sup> J B) +2.0 × 10<sup>-3</sup> J C) -2.0 × 10<sup>-3</sup>J D) -2.3 × 10<sup>-3</sup>J E) +4.5 × 10<sup>-3</sup> J = 0.20 T î + 0.40 T ĵ. The normal to the loop is parallel to the unit vector A round loop of diameter 12 cm, carrying a current of 0.40 A, is placed inside a magnetic field = 0.20 T î + 0.40 T ĵ. The normal to the loop is parallel to the unit vector = -0.60 î - 0.80 ĵ. What is the potential energy of the loop? A) -4.5 × 10<sup>-3</sup> J B) +2.0 × 10<sup>-3</sup> J C) -2.0 × 10<sup>-3</sup>J D) -2.3 × 10<sup>-3</sup>J E) +4.5 × 10<sup>-3</sup> J
= -0.60 î - 0.80 ĵ. What is the potential energy of the loop?


A) -4.5 × 10-3 J
B) +2.0 × 10-3 J
C) -2.0 × 10-3J
D) -2.3 × 10-3J
E) +4.5 × 10-3 J

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