A 3-phase 440 V, 50 Hz induction motor has 4% slip. The frequency of rotor e.m.f. will be____________?

Related Mcqs:

In squirrel cage induction motors, the rotor slots are usually given slight skew in order to__________?

A. reduce windage losses B. reduce eddy currents C. reduce accumulation of dirt and dust D. reduce magnetic hum...

In the circle diagram for induction motor, the diameter of the circle represents____________?

A. slip B. rotor current C. running torque D. line voltage...

Low voltage at motor terminals is due to____________?

A. inadequate motor wiring B. poorely regulated power supply C. any one of the above D. none of the above...

In case of 3-phase induction motors, plugging means__________?

A. pulling the motor directly on line without a starter B. locking of rotor due to harmonics C. starting the motor on load which is more than the rated load D. interchanging two supply phases for quick stopping...

The low power factor of induction motor is due to___________?

A. rotor leakage reactance B. stator reactance C. the reactive lagging magnetizing current necessary to generate the magnetic flux D. all of the above...