Two long electric lines are suspended vertically. Line 1 carries a 2.20 A downward current. An upward current of 3.20 A flows through line 2, which is 8.0 cm to the left of line 1. Find the magnitude of the force exerted on a 0.5 m length of one line by the other line. What is the nature of force between two parallel lines?

• A. i) F = 1.81 × 10 ^-6 N ii) The force is repulsive
• B. i) F = 8.80 × 10 ^-6 N ii) The force is repulsive
• C. i) F = 1.25 × 10^-5 N ii) The force is attractive
• D. i) F = 1.76 × 10^-5N ii)The force is attractive