If a self excited DC generator is failed to run, this refers to ________________(a) zero residual voltage(b) field MMF, that it is not cumulative(c) resistance is greater than critical resistance(d) any of the mentionedThis question was posed to me in examination.This interesting question is from Methods of Excitation topic in portion DC Machines of Electrical Machines

If a self excited DC generator is failed to run, this refers to ______

1.	If a self excited DC generator is failed to run, this refers to ________________(a) zero residual voltage(b) field MMF, that it is not cumulative(c) resistance is greater than critical resistance(d) any of the mentionedThis question was posed to me in examination.This interesting question is from Methods of Excitation topic in portion DC Machines of Electrical Machines
Answer» The CORRECT option is (a) zero residual voltage To elaborate: Any of the REASONS are VALID for no BUILD up of an emf.

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