Two straight parallel wires carry currents in opposite directions as shown in the figure. One of the wires carries a current of I2 = 10.1 A. Point A is the midpoint between the wires. The total distance between the wires is d = 10.8 cm. Point C is 5.33 cm to the right of the wire carrying current I2. Current I1 is adjusted so that the magnetic field at C is zero.
1. Calculate the value of the current I1. 3.06×101
2. Calculate the magnitude of the magnetic field at point A.
3. What is the force between two 1.39 m long segments of the wires? 7.95×10-4 N