When the motor is at its maximum speed then back emf will be______________?

Related Mcqs:

A laminated iron core has reduced eddy-current losses because____________?

A. more wire can be used with less D.C. resistance in coil B. the laminations are insulated from each other C. the magnetic flux is concentrated in the air gap of the core D. the laminations are stacked vertfcally...

Which of the following circuit elements will oppose the change in circuit current ?

A. Capacitance B. Inductance C. Resistance D. All of the above...

The polarity of the induced voltage can be determined by using the left-hand generator rule

A. Yes B. No...

If the coil is wound on an iron core the flux through it will_______________?

A. decrease B. become zero C. remain the same D. increase...

The alternating current has frequency of 106 Hz in such a way that time period for completion of cycle is_______________?

A. 1Hzs B. 1.5Hzs C. 106sec D. 1sec...