Electrical Machines
When Flemings right hand rule to find the direction of induced emf, the thumb points towards

 opposite to the direction of motion of the conductor.
 direction of flux.
 direction of induced emf.
 direction of motion of the conductor.

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Electrical Machines
Short circuit test is performed on a transformer with a certain impressed voltage at rated frequency. If the short circuit test is now performed with the same magnitude of impressed voltage, but at frequency higher than the rated frequency then

 The magnetude of current will increase, but power factor will decrease.
 The magnitude of current will decrease but the power factor will increase.
 The magnitude will both increase.
 The magnitude of circuit as well as the power factor will decrease.

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