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Q9. a) Differentiate between resistance, induction and impedance in an A.C. circuit. (6)

Q9. b) A 4-pole, 32 conductor, Lap-wound DC shunt generator with terminal voltage of 200 V delivering 12 A to the load has Ra = 2 and field circuit resistance of 200 Ω. It is driven at 1000 RPM . Calculate

i) The flux per pole in the machine.

ii) If the machine has to be run as a motor with the same terminal voltage and drawing 5 A from mains, maintaining the same magnetic field, find the speed of the machine. (10)