DC Generators
If the value of shunt field resistance of a shunt generator is greater than the critical resistance, the generator will

None of the listed here
Excite to one half of full voltage
Fail to excite
Excite to full voltage

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DC Generators
Inter-pole flux should be sufficient to

Neutralize both the armature reaction flux as well as commutating e.m.f. induced in the coil
Neutralize the commutating self induced e.m.f.
Neutralize the armature reaction flux
None of these

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DC Generators
In D.C. generators the polarity of the interpoles

Is opposite to that of the main pole ahead
Is neutral as these poles do not play part in generating e.m.f.
Is the same as that of the immediately preceding pole
Is the same as that of the main pole ahead

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