Example-7 •A 200-V, d.c. shunt motor takes 4 A at no- load when running at 700 r.p.m. The field resistance is 100 Q. The resistance of armature at standstill gives a drop of 6 volts across armature terminals when 10 A were passed through it. Calculate (a) speed on load (b) torque in N-m and (c) efficiency. The normal input of the motor is 8 kW. Faculty of Engineering Technology 105