A 250 V, DC shunt motor takes a line current of 20 A. The resistance of shunt field winding is 200Ω and resistance of the armature is 0.3 Ω Find the armature current and the back e.m.f.

Q. A 250 V, DC shunt motor takes a line current of 20 A. The resistance of shunt field winding is 200Ω and resistance of the armature is 0.3 Ω Find the armature current and the back e.m.f.

A.            18.75 A, 245 V

B.            25.32 A, 225 V

C.            15.65 A, 100 V

D.            10 A, 150 V

Answer: 18.75 A, 245 V