Answered: A battery with an emf of 9.30 V is…

A battery with an emf of 9.30 V is connected to a 71.5 Ω resistor. The current through the battery is 115 mA. What is the battery's internal resistance (in Ω)?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter29: Direct Current (dc) Circuits

Section: Chapter Questions

Problem 19PQ

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Question

A battery with an emf of 9.30 V is connected to a 71.5 Ω resistor. The current through the battery is 115 mA. What is the battery's internal resistance (in Ω)?

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