V V We are testing a car battery to measure its internal resistance. We measure a voltage of 11.9 Volts with a voltmeter (negligible current flowing) as shown in the left illustration. Then we connect a 5 Ohm resistor across the battery and measure a voltage of 9 Volts across the resistor (right illustration). What is the internal resistance r of the battery? Ohms

V V We are testing a car battery to measure its internal resistance. We measure a voltage of 11.9 Volts with a voltmeter (negligible current flowing) as shown in the left illustration. Then we connect a 5 Ohm resistor across the battery and measure a voltage of 9 Volts across the resistor (right illustration). What is the internal resistance r of the battery? Ohms

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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