Two long parallel wires carry unequal currents in the same direction. The ratio of the currents is 3 to 1 . The magnitude of the magnetic field at a point in the plane of the wires and 10 cm from each wire is 4.0 ?T. What is the larger of the two currents?

a. 5.3 A
b. 3.8 A
c. 4.5 A
d. 3.0 A
e. 0.5 A


d

Physics & Space Science

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