DC Generators
Due to armature reaction, the main pole flux of a dc generator is

Distorted only
None of the listed here
Weakend only
Weakened as well as distorted

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DC Generators
In a D.C. generator

Magnetization characteristic = external characteristic
External characteristic = magnetization characteristic ohmic drop armature reaction
Internal characteristic = magnetization characteristic ohmic drop
External resistance = internal characteristic armature reaction

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