A direct-current generator has an emf of 120 V; that is, its terminal voltage is 120 V
Question:
A direct-current generator has an emf of 120 V; that is, its terminal voltage is 120 V when no current is flowing from it. At an output of 20 A, the terminal potential is 115 V.
(a) What is the internal resistance r of the generator?
(b) What will be the terminal voltage at an output of 40 A?
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