engineering recuitment GATE EE 2023-24 Test Series Electrical Machines DC Generators Generator EMF Equation
A 220 V dc separately excited dc machine has an armature resistance of 0.4 Ω. If the full load current is 40 A, the difference in the induced voltages when the machine is running as a motor and as a generator is:
1
0 V
2
8 V
3
32 V
4
16 V