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Wires 1 and 2 are very long, stationary, and carry a uniform 150-A current. An 80 cm segment of a third long wire has a

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Wires 1 and 2 are very long, stationary, and carry a uniform 150-A current. An 80 cm segment of a third long wire has a mass of 5 g and is placed a perpendicular distance a = 12 cm away from wires 1 and 2. It is observed that wire 3 hovers in the air at rest due to gravitational and magnetic forces. wire 1 O a. What must be the current directions in wires 2 and wire 3 to create this equilibrium? Explain your reasoning in 1-2 sentences. a b. Calculate the magnitude and direction of the net magnetic field produced by wires 1 and 2, at the location of wire 3. O wire 3 a c. Calculate the current in wire 3 that maintains this equilibrium. a pro of & sevenli baision wire 2 A metal rod is pulled to the left along two parallel metal rails with a constant speed of 3 m/s. The entire system is immersed in a uniform magnetic field of magnitude 1.0 T pointing out of the page. The distance between the horizontal rails is L = 50 cm, and he total resistance of the circuit is 0.4 0 (assumed constant). a V L a. What is the induced emf in the rod? b. What is the magnitude and direction of the electric field in the rod? c. What is the magnitude and direction of the induced current in the rod? d. Which end is at a higher potential, point a or b? e. What is the magnitude and direction of the magnetic force on the rod? f. Compute the rate at which electrical energy is being converted into thermal energy

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