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A Current-Carrying Wire of Length 42 Cm Is Positioned Perpendicular

Question 72

Multiple Choice

A current-carrying wire of length 42 cm is positioned perpendicular to a uniform magnetic field.If the current is 6.7 A and it is determined that there is a resultant force of 2.9 N on the wire due to the interaction of the current and field,what is the magnetic field strength?


A) 1.03 T
B) 0.10 T
C) 0.15 T
D) 3.7E-3 T
E) ​1.8E-3 T

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