Electrical Machines
The effect of ------------------ on main field flux is armature reaction?

 armature flux
 armature mmf
All of these
 armature current

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Consider the following statements : Interpoles in dc machines 1. reducearmature reaction effects in the interpolar region 2. have the same dimension as main polls 3. have their windings connected in series with the armature 4. have same number of turns as the armature 5. have the polarity same as that of the main pole ahead in a motor From these, the correct statements are

 1, 2 and 3
 1, 3 and 5
 1, 2, 3 and 5
 1 and 3

ANSWER DOWNLOAD EXAMIANS APP