Two Very Long Parallel Wires Are a Distance D Apart

question 13

Multiple Choice

Two very long parallel wires are a distance d apart and carry equal currents in opposite directions. The locations where the net magnetic field due to these currents is equal to zero are

• A) midway between the wires.
• B) a distance d/2 to the left of the left wire and also a distance d/2 to the right of the right wire.
• C) a distance d to the left of the left wire and also a distance d to the right of the right wire.
• D) a distance d/ to the left of the left wire and also a distance d/ to the right of the right wire.
• E) The net field is not zero anywhere.

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