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DC GENERATORS

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

Copper
Cast iron
Carbon
Mica

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DC Generators
The resistance of armature winding depends on

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

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DC Generators
The armature of dc generator is laminated to

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

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DC Generators
In a commutator

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

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

Voltage
None of the listed here
Speed
Current

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