Three Phase Induction Motors
If the supply voltage of a 3-phase induction motor is increased two times, then torque is _______

Decreased two times
Increased four times
Increased two times
Decreased four times

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Three Phase Induction Motors
As load on an induction motor goes on increasing

Its power factor goes on decreasing
Its power factor goes on increasing even after full load
Its power factor remains constant
Its power factor goes on increasing up to full load and then it falls again

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