Torque: a Circular Loop of Diameter 10 Cm, Carrying a Current

question 5

Multiple Choice

Torque: A circular loop of diameter 10 cm, carrying a current of 0.20 A, is placed inside a magnetic field = 0.30 T . The normal to the loop is parallel to a unit vector = -0.60 - 0.80 . Calculate the magnitude of the torque on the loop due to the magnetic field.

• A) 4.7 × 10^-4 N ∙ m
• B) 2.8 × 10^-4 N ∙ m
• C) 0.60 × 10^-4 N ∙ m
• D) 1.2 × 10^-4 N ∙ m
• E) zero

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