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1. Two parallel wires separated by a distance l 1.0m are carrying currents l1- 15A and I2 7A in the direction shown in tHe diagram. Halfway between the two wires is a small solenoid, consisting of N- 8 loops with radius r. a) Assume the solenoid is small enough that the magnetic field in the vicinity of the solenoid is uniform and equal to the value at the centre of the solenoid. If the magnetic flux through the solenoid is ??: 2.5 10-12T m2, calculate the radius of the solenoid. b) If the solenoid rotates such that point a moves into the page and point b out of the page, in which direction is the induced current produced within the solenoid? If the solenoid rotates 30 degrees in 3 seconds, calculate the magnitude of the average induced emf. c) If you were to rotate the solenoid clockwise, in which direction is the induced current? d) Suppose instead of rotating the solenoid, you move the solenoid towards the wire on the left (current h). What direction will the induced current within the solenoid be in this case?
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