Two straight parallel wires carry currents in opposite directions as shown in th

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Two straight parallel wires carry currents in opposite directions as shown in the figure. One of the wires carries a current of I_2 = 11.4 A. Point A is the midpoint between the wires. The total distance between the wires is d = 11.1 cm. Point C is 5.34 cm to the right of the wire carrying current I_2. Current I_1 is adjusted so that the magnetic field at C is zero. Calculate the value of the current I_1. Calculate the magnitude of the magnetic field at point A. What is the force between two 2.27 m long segments of the wires?

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