A shunt generator can self-excite:________?
Aonly if the resistance of the field circuit is greater than critical value
Birrespective of the value of the resistance in the field circuit
Cnone
Donly if the resistance of the field circuit is less than critical value
Correct answer
D. only if the resistance of the field circuit is less than critical value
Explanation
The correct answer is only if the resistance of the field circuit is less than critical value.