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For a given dc generator, the external characteristic is plotted. Without using further plots, how can we obtain internal characteristic?

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For a given dc generator, the external characteristic is plotted. Without using further plots, how can we obtain internal characteristic?

(a) By adding the IaRa drop to the plot

(b) By adding armature reaction

(c) By reducing IaRa drop

(d) All of the mentioned

The question was asked in semester exam.

The above asked question is from Operating Characteristics of DC Generators in section DC Generators of Electrical Machines

1 Answer

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Best answer
The correct choice is (a) By adding the IaRa drop to the plot

Easiest explanation: Adding the armature resistance drop we can obtain the external characteristic for a dc generator.

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