Some generators, called shunt generators, use electromagnets in place of permanent magnets, with the field coils for the electromagnets activated by the induced voltage. The magnet coil is in parallel with the armature coil (it shunts the armature). As shown in Fig. 33-3, a certain shunt generator has armature resistance 0.060 fi and shunt resistance 100 fi. What power is developed in the armature when it delivers 40 kW at 250 V to an external circuit?