A circular loop having radius 12 cm carries a current of 13 A. A second loop of radius 0.82 cm containing 50 turns and a current of 1.3 A, is at the center of the first loop. (i) Determine the magnetic field which does the large loop set up at its center? (ii) Compute the torque which acts on the small loop. Suppose that the planes of the two loops are at right angles and that the magnetic field due to the large loop is in essence uniform all through the volume occupied by the small loop.