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

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

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter10: Direct-current Circuits

Section: Chapter Questions

Problem 23P: (a) What is the internal resistance of a voltage source if its terminal potential drops by 2.00 V...

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