What is the range of the power factor for the 4 pole motors?
(a) 0.6-0.85
(b) 0.75-0.95
(c) 0.6-0.8
(d) 0.7-0.9
I got this question by my school principal while I was bunking the class.
Question is taken from Design of Small Universal Commutator Motors topic in section Design of Small Electrical Machines, Starters and Field Regulators of Design of Electrical Machines