6. In class we mentioned the idea of internal resistance of a battery. Ideally, for a perfectbattery one would have AV = E, the electromotive force. In reality, every battery havea small but nonzero internal resistance r which means the actual potential differenceacross the battery is not constant, and may sometimes be significantly different thanwhat it is rated for.and the current is given byWM|1|*3(a) Show that the potential difference across the battery isAV = E - ir=`loadi =Er+Rload(b) If r = 10, plot AV versus Rload-(c) Given the above, explain why sometimes we don't care about the internal resis-tance.(d) Let E1.53V, and the measured voltage and current across a 15.60 load isrespectively 1.49V and 96mA, what is the internal resistance?

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. In class we mentioned the idea of internal resistance of a battery. Ideally, for a perfect battery one would have AV = E, the electromotive force. In reality, every battery have a small but nonzero internal resistance r which means the actual potential difference across the battery is not constant, and may sometimes be significantly different than what it is rated for. ^^^||1|* and the current is given by 3 {R (a) Show that the potential difference across the battery is AV = E-ir i = load E r+Rload (b) If r = 10, plot AV versus Rload- (c) Given the above, explain why sometimes we don't care about the internal resis- tance. (d) Let & = 1.53V, and the measured voltage and current across a 15.60 load is respectively 1.49V and 96mA, what is the internal resistance?

. In class we mentioned the idea of internal resistance of a battery. Ideally, for a perfect battery one would have AV = E, the electromotive force. In reality, every battery have a small but nonzero internal resistance r which means the actual potential difference across the battery is not constant, and may sometimes be significantly different than what it is rated for. ^^^||1|* and the current is given by 3 {R (a) Show that the potential difference across the battery is AV = E-ir i = load E r+Rload (b) If r = 10, plot AV versus Rload- (c) Given the above, explain why sometimes we don't care about the internal resis- tance. (d) Let & = 1.53V, and the measured voltage and current across a 15.60 load is respectively 1.49V and 96mA, what is the internal resistance?

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter17: Current And Resistance

Section: Chapter Questions

Problem 40P: A typical cell phone consumes an average of about 1.00 W of electrical power and operates on 3.80 V....

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