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Practice MCAT Question - Q47

Two wires, A and B separated by a distance d, carry currents iA and iB in opposite directions. Which statement is true? The magnetic field, B, produced by the current in wire A in turn produces

A.  a net force on both wire A and wire B.
B.  no net force on either wire A or wire B.
C.  a net force on wire A only.
D.  a net force on wire B only.

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