38) The three phase armature windings are kept electrically apart by

39) How many parallel paths in 6 pole simplex lap wound armature in DC generator is

40) The number of parallel paths of simplex wave windings of D.C. generator is

41) The number of parallel path 'A' for duplex lap wound 4 pole DC machine is

42) How many number of parallel paths are there for 4 pole duplex wave wound armature ?