
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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A 100-Ω resistor is connected across the terminals of a DC source. The 100-Ω resistor consumes 0.794 W of power. The 100-Ω resistor is then replaced by a 200-Ω resistor, such that 0.401 W is consumed by the 200-Ω resistor. The emf ε and internal resistance r of the DC source are?
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