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For series DC generator, internal/external characteristic start from ____________

(a) Positive non-zero voltage

(b) Zero voltage

(c) Negative non-zero voltage

(d) Can start from anywhere

I got this question by my college professor while I was bunking the class.

The origin of the question is Characteristics of Separately Excited Generators topic in portion DC Generator of DC Machines

1 Answer

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Right choice is (b) Zero voltage

For explanation: For all other DC generators other than series DC generators, the external and internal characteristic as well, start from non-zero positive value of voltage. While in series DC generator both internal and external characteristic start from origin.

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