Which of the following loss in a D.C. generator varies significantly with the load current ?

Related Mcqs:

The direction of rotation of a D.C. series motor can be changed by___________?

A. interchanging supply terminals B. interchanging field terminals C. either of A. and B. above D. None of the above...

The starting resistance of a D.C. motor is generally_______________?

A. low B. around 500 Q C. 1000 Q D. infinitely large...

For which of the following applications a D.C. motor is preferred over an A.C. motor ?

A. Low speed operation B. High speed operation C. Variable speed operation D. Fixed speed operation...

Which motor should not be started on no-load ?

A. Series motor B. Shunt motor C. Cumulatively compounded motor D. Differentially compounded motor...

D.C. generators are normally designed for maximum efficiency around_____________?

A. full-load B. rated r.p.m. C. rated voltage D. all of the above...