Choose the most inappropriate out of the following for the no-load characteristics of the dc generator.
(a) It is the open circuit characteristic of the machine
(b) It is magnetization characteristic of the machine
(c) It is conducted on the unloaded machine
(d) None of the mentioned
I have been asked this question in an international level competition.
My question is based upon Operating Characteristics of DC Generators topic in chapter DC Generators of Electrical Machines