OpenStax College Physics, Chapter 21, Problem 21 (Problems & Exercises)
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collegephysicsanswers.com
OpenStax College Physics, Chapter 21, Problem 21 (Problems & Exercises)
The hot resistance of a flashlight bulb is 2.30 \Omega , and it is run by a 1.58-V alkaline cell having a 0.100 \Omega internal resistance. (a) What current flows? (b) Calculate the power supplied to the bulb using I^2R_{bulb}. (c) Is this power the same as calculated using \dfrac{V^2}{R}?
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