Question: Two long, parallel wires are separated by a distance of 0.400 m (Fig). The currents I, and 12 have the directions shown. (a) Calculate the

Two long, parallel wires are separated by a distance of 0.400 m (Fig). The currents I, and 12 have the directions shown.
(a) Calculate the magnitude of the force exerted by each wire on a 1.20-m length of the other. Is the force attractive or repulsive?
(b) Each current is doubled, so that I2 becomes 10.0 A and I2 becomes 4.00 A. Now what is the magnitude of the force that each wire exerts on a 1.20-m length of the other?

5.00 A 0.400 m I2 = 2.00 A

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