DC Generators
In a dc generator, armature reaction _____ pole tip.

Strengthns the flux at the leading
None of the listed here
Weaknes the flux at the leading
Weaknes the flux at the trailing

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DC Generators
When two D.C. series generators are running in parallel, an equalizer bar is used

To increase the speed and hence generated e.m.f.
To increase the series flux
To reduce the combined effect of armature reaction of both machines
So that two similar machines will pass approximately equal currents to the load

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