D.c. Generators Archives

1. The e.m.f. generated by a shunt wound D.C. generator is E. Now while pole flux remains constant, if the speed of the generator is doubled, the e.m.f. generated will be

$$rac{{ ext{E}}}{2}$$

generator is E. Now while pole flux remains constant, if the speed of the generator is doubled, the e.m.f. generated will be A. $$rac{{ ext{E}}}{2}$$ B. 2E C. Slightly less than E

Answer is Right!

Answer is Wrong!

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will be" class="read-more button" href="https://exam.pscnotes.com/mcq/the-e-m-f-generated-by-a-shunt-wound-d-c-generator-is-e-now-while-pole-flux-remains-constant-if-the-speed-of-the-generator-is-doubled-the-e-m-f-generated-will-be/#more-43052">Detailed Solution

2. Open circuited armature coil of a D.C. machine is

Identified by the scarring of the commutator segment to which open circuited coil is connected

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)

None of the above

Answer is Right!

Answer is Wrong!

Detailed SolutionOpen circuited armature coil of a D.C. machine is