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Q#1 Synchronous Machines GATE EE 2002 MCQ +2 marks -0.66 marks

The flux per pole in a synchronous motor with the field circuit ON and the stator disconnected from the supply is found to be 25mWb. When the stator is connected to the rated supply with the field excitation unchanged, the flux per pole in the machine is found to be 20mWb while the motor is running on no load.

Assuming no load losses to be zero, the no load current down by the motor from the supply

Lags the supply voltage

Leads the supply voltage

Is in phase with the supply voltage

Is zero

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