GETCO Exam Paper (22-07-2015)
In case of a balanced three phase sinusoidal AC supply, because of the phase difference

rotating magnetic field is produced
all are correct
neutral current is high if load is not balanced
neutral wire is not required, if load is balanced

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GETCO Exam Paper (22-07-2015)
Stray loss is equal to _____

field copper loss & iron loss
frictional loss & copper loss
copper loss and iron loss
mechanical loss & iron loss

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