a. A rectangular coil ABCD is placed in a uniform magnetic field directed into the plane of the paper. Current 3A flows through the coil along A→B→C→D→A. (i) State the direction of the force acting on each of the four sides AB, BC, CD and DA.
b. (ii) When viewed from the front, will the coil start rotating clockwise or anticlockwise? Justify your answer in one sentence.