A chording angle ε is defined as the angle by which coil span departs from __________
(a) 90° electrical space degrees
(b) 180° electrical space degrees
(c) 360° electrical space degrees
(d) all of the mentioned
I have been asked this question by my school teacher while I was bunking the class.
My question is based upon Terms Pertaining To Rotating Machines in chapter Basic Concepts in Rotating Machines of Electrical Machines