Question: Two long parallel straight wires carry equal currents in opposite directions. At a point midway between the wires, the magnetic field they produce is: a

Two long parallel straight wires carry equal currents in opposite directions. At a point midway between the wires, the magnetic field they produce is:
a. zero
b. non-zero and along a line connecting the wires
c. non-zero and parallel to the wires
d. non-zero and perpendicular to the plane of the two wires
e. none of the above
Two long parallel straight wires carry equal

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