A hybrid electric car utilises a shunt wound motor/generator configuration.
The armature resistance is 2.5 S and the field winding resistance is 150 92.
When operating as a generator with a shaft velocity of 2500 rpm, a current of 20 A with an output voltage of 200 V is supplied.
Find the electromotive force (emf) produced by the generator.
11)
Calculate the efficiency of the generator