A battery has an emf of 15.0 V. The terminal voltage of the battery is 10.8 V when it is delivering 26.0 W of power to an external load resistor R. (a) What is the value of R? (b) What is the internal resistance of the battery?

A battery has an emf of 15.0 V. The terminal voltage of the battery is 10.8 V when it is delivering 26.0 W of power to an external load resistor R. (a) What is the value of R? (b) What is the internal resistance of the battery?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: Current And Direct Current Circuits

Section: Chapter Questions

Problem 33P: A battery has an emf of 15.0 V. The terminal voltage of the battery is 11.6 V when it is delivering...

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Question

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A battery has an emf of 15.0 V. The terminal voltage of the battery is 10.8 V when it is delivering 26.0 W of power to an external load resistor R.

(a) What is the value of R?

(b) What is the internal resistance of the battery?

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