As a result of armature reaction, the reduction in the total mutual air gap flux in a D.C. generator is approximately______________?

Related Mcqs:

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

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

Armature reaction of an unsaturated D.C. machine is_____________?

A. crossmagnetising B. demagnetising C. magnetising D. none of above...

In any rotating machine that part which houses the conductors and in which e.m.f. induced is to be utilized is called____________?

A. rotor B. stator C. field D. armature...

In a D.C. generator in order to reduce sparking at brushes, the self-induced e.m.f. in the coil is neutralised by all of the following except______________?

A. interpoles B. dummy coils C. compensating winding D. shifting of axis of brushes...

The terminal voltage of a series generator is 150 V when the load current is 5 A. If the load current is increased to 10 A, the terminal voltage will be____________?

A. 150 V B. less than 150 V C. greater than 150 V D. none of the above...