Answered: 1.0 Ω 1.5 V FIGURE P23.59

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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A real battery is not just an emf. We can model a real 1.5 V battery as a 1.5 V emf in series with a resistor known as the “internal resistance,” as shown. A typical battery has 1.0 Ω internal resistance due to imperfections that limit current through the battery. When there’s no current through the battery, and thus no voltage drop across the internal resistance, the potential difference between its terminals is 1.5 V, the value of the emf. Suppose the terminals of this battery are connected to a 2.0 Ω resistor.
a. What is the potential difference between the terminals of the battery?
b. What fraction of the battery’s power is dissipated by the internal resistance?

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