The critical resistance of the D.C. generator is the resistance of_____________?

Related Mcqs:

In D.C. generators, the cause of rapid brush wear may be___________?

A. severe sparking B. rough commutator surface C. imperfect contact D. any of the above...

Iron losses in a D.C. machine are independent of variations in_____________?

A. speed B. load C. voltage D. speed and voltage...

A D.C. generator can be considered as____________?

A. rectifier B. primemover C. rotating amplifier D. power pump...

Open circuited armature coil of a D.C. machine is________________?

A. identified by the scarring of the commutator segment to which open circuited coil is connected B. indicated by a spark completely around the commutator C. both A. and (b) D. none of the above...

A D.C. generator works on the principle of____________?

A. Lenz’s law B. Ohm’s law C. Faraday’s law of electromagnetic induction D. none of the above...