railway RRB JE (CBT I + CBT II) Mock Test 2024 Electrical Machines DC Generators DC Generator Construction
Which of the following statement is correct for lap winding compared to wave winding?
1
The e.m.f. of the lap winding is more
2
The winding cost of the lap winding is low
3
The efficiency of the lap winding is less
4
The additional coil used is dummy coil