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A Straight Wire Is Carrying a Current of 2 B⃗\vec { B }

Question 79

Multiple Choice

A straight wire is carrying a current of 2.0 A.It is placed at an angle of 60° with respect to a 0.20-T B⃗\vec { B } field.If magnetic force exerted on the wire has a magnitude of 0.40 N,what is the length of the wire?


A) 1.0 m
B) 1.2 m
C) 1.4 m
D) 1.6 m
E) 1.8 m

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