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DC Shunt Generator (problem solving in TAGALOG)

1. A shunt generator delivers 450 A at 230 V and the resistance of the shunt field and armature are 50 ohms and 0.03 ohms respectively. Calculate the generated emf.
2. An 8-pole dc shunt generator with 778 wave-connected armature conductors and running at 500 rpm supplies a load of 12.5 ohm resistance at terminal voltage of 250 volts. The armature resistance is 0.24 ohms and the field resistance is 250 ohms. Find the armature current, the induced emf, and the flux per pole.
3. A 4-pole lap-connected armature of a dc shunt generator is required to supply the loads connected in parallel: 1.) 5kw at 250 V, and 2.) 2.5kw lighting load at 250 V. The generator has an armature resistance of 0.2 ohm and a field resistance of 250 ohms. The armature has 120 conductors in the slots and runs at 1000 rpm. Allowing 1 V per brush for contact drops and neglecting friction, find (a) flux per pole (b) armature current per parallel path
4.Calculate the flux per pole required on full-load for a 50 kw, 400V, 8-pole, 600rpm dc shunt generator with 256 conductors arranged in a lap-connected winding. The armature winding resistances is 0.1 ohm, the shunt field resistance is 200 ohms and there is a brush contact voltage drop of 1 V at each brush on full load.