Current flowing through armature of d.c. shunt machine at maximum efficiency
Q. The current flowing through the armature of a d.c. shunt machine at maximum efficiency is given by- Published on 19 Oct 15a. √(Pi / Ra)
b. √(Ra / Pi)
c. √(Pi / R2a)
d. √(Ra / P2i)
ANSWER: √(Pi / Ra)