29. Sources of Magnetic Field
Magnetic Force Between Parallel Currents
Multiple Choice
Multiple ChoiceTwo long parallel wires lie in the x-y plane, and each carry currents in opposite directions. Wire 1 lies along the line and carries a current in the negative x direction; wire 2 lies along the line and carries a current in the positive x direction. What is the direction of the magnetic field at the point (, , )?
A
Negative z direction
B
Negative y direction
C
Negative x direction
D
Positive x direction
E
Positive z direction
F
Positive y direction
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