3. (10 points) A current carrying rectangular loop is placed in a uniform magnetic field as shown below. The loop is pivotted on and free to rotate about the y axis. If I = 3.5 A, and B = 0.9 T, a. Draw the direction of magnetic force on each side of the loop, b. Separately, draw the top view of the loop (in the xz plane), and clearly show the directions of I, B and u on it. c. In which direction would the loop rotate, in viewing from the top, d. Calculate the magnitude and direction of the torque exerted on the loop. I 50 cm 25 35cm