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DC GENERATORS

DC Generators
The field coil of dc generator are usually made of

Carbon
Copper
Cast iron
Mica

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DC Generators
The resistance of armature winding depends on

Cross sectional area of the conductor
All of the listed here
Length of conductor
Number of conductors

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DC Generators
The armature of dc generator is laminated to

Reduce eddy current loss
Reduce the bulk
Insulate the core
Provide the bulk

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DC Generators
In a commutator

Mica and copper are equally hard
Mica is harder than copper
None of the listed here
Copper is harder than mica

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DC Generators
In case of dc machines, mechanical losses are primary function of

None of the listed here
Current
Voltage
Speed

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