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A 10 KW shunt generator having an armature circuit resistance of 0.75 and a field resistance of 125 , generates a terminal voltage of 250 V at full load. Determinate the efficiency of the generator at full load, assuming the iron, friction and .windage losses amount to 600 W 85.5% O O 85% 95.5% 80.5% A 4 pole, lap wound d.c. motor drawing an armature current of 20 A has 360 conductors. If the flux per pole is 0.015 Wb then the gross torque developed by the * armature of motor is 17.17 N-m O 15.56 N-m O 19.08 N-m O 10.23 N-m >