a. A conducting circular loop having a radius of 5″0 cm, is placed perpendicular to a magnetic field of 0.50 T. It is removed from the field in 0*50 s. Find the average emf produced in the loop during this time.

b. A conducting circular loop of area 1 mm2 is placed collinearly with a long, straight wire at a distance of 20 cm from it. The straight wire carries an electric current which changes from 10 A to zero in 0*1 s. Find the average emf induced in the loop in 0.1s.

c. A square-shaped copper coil has edges of length 50 cm and contains 50 turns. It is placed perpendicular to a 1.0 T magnetic field. It is removed from the magnetic field in 0″25 s and restored in its original place in the next 0*25 s. Find the magnitude of the average emf induced in the loop during (a) its removal, (b) its restoration and (c) its motion.