(a) A rectangular wire loop with sides of 45 cm and 15 cm carries a current of 10.0 A (see below).A long straight wire lies in the same plane as the loop and parallel to its longer sides, and carries a current of 5.0 A. If the long wire is 10 cm away from the side of the loop carrying current in the same direction, calculate the magnitude and direction of the net force exerted on the loop by the magnetic field created by the wire. (b) The three (infinitely long) conducting wires in the figure below are carrying currents IA, IB and Ic respectively. Calculate the magnitude and the direction of the B field at points X and Y.

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