2. A 4 pole dc shunt motor has a flux per pole of 0.04 Wb and the armature is lap wound with 720 conductors. The shunt field resistance is 240 ohms and the armature resistance is 0.2 ohm. Brush...

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Extracted text: 2. A 4 pole dc shunt motor has a flux per pole of 0.04 Wb and the armature is lap wound with 720 conductors. The shunt field resistance is 240 ohms and the armature resistance is 0.2 ohm. Brush contact drop is 1V per brush .Determine the speed of the machine when running as a motor taking 60 A and as a generator supplying 120A.The terminal voltage is 480V in each case.