125 r.p.s.

100 r.p.s.

50 r.p.s.

25 r.p.s.

3.2 amp

4.0 amp

5.0 amp

5.5 amp

100 A

102 A

4 A

2 A

The capacity of both generators must be same

The field critical resistances must be same

The polarities of both generators must be same

The maximum efficiency of both generators must be same