Two Parallel Wires Carry the a Current I in the Same

question 13

Multiple Choice

Two parallel wires carry the a current I in the same direction. Midway between these wires is a third wire, also parallel to the other two, which carries a current 0.5 I, but in the direction opposite from the first two wires. In which direction are the net forces on the outer wires?

• A) Both forces are toward the center wire.
• B) Since the net forces are zero, there is no direction.
• C) Both forces are away from the center wire.
• D) Both forces on the two wires are in the same direction in space.

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