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Which of the following is not the operating characteristics of Dc generator?

(a) No-load characteristics

(b) Load characteristics

(c) External characteristics

(d) Internal characteristics

This question was posed to me in an international level competition.

Asked question is from No Load with On Load Characteristics of DC Generator in chapter DC Generator of DC Machines

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Correct option is (d) Internal characteristics

The explanation is: The relationship between various parameters has to be presented graphically because of the magnetic saturation effect. Four characteristics of importance are the following: 1) No load characteristics 2) Load characteristics 3) External characteristics 4) Armature characteristics.

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