A 200 V, dc series motor takes 40 A when running at 700 rpm. Calculate the speed at which the motor will run and the current taken from the supply if the field is shunted by a resistance double the field resistance and the load torque is increased by 50%. Armature resistance = 0.15 Ω, field resistance = 0.1 Ω It may be assumed that flux per pole is proportional to the field.