Two very long parallel wires carry currents in the positive x direction. One wire (current = 15 A) is coincident with the x axis. The other wire (current = 50 A) passes through the point (0, 4.0 mm, 0). What is the magnitude of the magnetic field at the point (0, 0, 3.0 mm)?
A. 3.8 mT
B. 2.7 mT
C. 2.9 mT
D. 3.0 mT
E. 0.6 mT
Answer: B
Physics & Space Science
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