Question

For a four pole, 16 slot armature with two coil-side/slot having lap connected progressive winding has single turn coils. The same machine is then wave wound, the emf induced in the lap wound dc machine to that of wave wound will be ________

(a) 2

(b) 0.5

(c) 1

(d) 4

I had been asked this question in unit test.

The query is from EMF Generated in the Armature topic in chapter Electromechanical Energy Conversions of Electrical Machines

Answer 1

Correct choice is (b) 0.5

To explain I would say: E = 1/(P/2)

              = 1/(4/2) = 1/2 V.