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The direction of rmf when a three phase supply is given to stator of three phase induction motor is?(a) Zero(b) Ns(c) 2Ns(d) -NsThe question was asked during an interview.This is a very interesting question from Principle of Operation in chapter Induction Machines of Electrical Machines

Answer» RIGHT choice is (b) Ns

The best I can explain: There will be rotating magnetic field will be produced causing the EMF to be induced and the current will flow in the ROTOR at a SPEED of synchronous speed.


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