A long shunt compound generator delivers a load current of 50 A at 500 V and resistances of armature, series field, shunt field are 0.05 $\Omega$, 0.04$\Omega$, and 200$\Omega$ respectively. The generated emf is ______(Allow 1 V per brush of contact drop).

Q. A 20 kW, 200 V short shunt dc generator is supplying rated load at terminal voltage. The armature, series field winding and shunt field winding resistance are $0.02\Omega ,0,05\Omega and100\Omega$ respectively. Considering brush drop as 2 V, generated emf is______V.

Q. A 50 kW, 120 V, long shunt compound generator is supplying a load at its maximum efficiency and the rated voltage. Armature resistance is 50 m$\Omega$, series field resistance is 20 m$\Omega$, shunt field resistance is 40 $\Omega$, rotational loss is 2 kW. The maximum efficiency of the generator is _____ %

Q. A dc shunt generator delivers 195 A at terminal voltage of 200 V, armature resistance is $0.03\Omega$ and field winding resistance is $40\Omega$. The stray losses are 900 W. The efficiency of generator is

Q. A short shunt, cumulative compound generator is rated at 100 A, voltage across load is 240 V and the shunt field current is 3 A. It has an armature resistance of 50 m$\Omega$, a series field resistance of 10 m$\Omega$, a field diverter resistance of 40 m$\Omega$, and a rotational loss of 2 kW. The generator is connected to the load via a feeder $R_{fe}$ of 30 m$\Omega$ resistance. The efficiency when the generator is supplying the full load at rated voltage, is

Q. A 230 V, 1800 rpm, long shunt, cumulative compound motor has a shunt field resistance of 460 $\Omega$, series field resistance of 0.2 $\Omega$ and armature circuit resistance of 1.3 $\Omega$. The full-load line current is 10.5 A. The rotational loss is 5% of the power developed. Then the efficiency (in percentage) of the motor at full load is________.