Three phase voltages are applied to the three windings of an electrical machine. If any two supply terminals are interchanged, then the rotating MMF wave _____________

Direction remains same, amplitude alters

Direction reverses, amplitude alters

Direction reverses, amplitude unaltered

Direction remains same, amplitude unaltered

Three phase voltages are applied to the three windings of an electrica

1.	Three phase voltages are applied to the three windings of an electrical machine. If any two supply terminals are interchanged, then the rotating MMF wave _____________
A.	Direction reverses, amplitude alters
B.	Direction reverses, amplitude unaltered
C.	Direction remains same, amplitude alters
D.	Direction remains same, amplitude unaltered
Answer» C. Direction remains same, amplitude alters

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