Suppose the operating resistance of a flashlight bulb is 2.1 Ω, and is powered by a 1.56 V alkaline cell having a 0.095 Ω internal resistance. What is the current, I, in amperes? How much power, P, in watts, is being supplied to the bulb?

Suppose the operating resistance of a flashlight bulb is 2.1 Ω, and is powered by a 1.56 V alkaline cell having a 0.095 Ω internal resistance. What is the current, I, in amperes? How much power, P, in watts, is being supplied to the bulb?

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 11P

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Suppose the operating resistance of a flashlight bulb is 2.1 Ω, and is powered by a 1.56 V alkaline cell having a 0.095 Ω internal resistance.

What is the current, I, in amperes?

How much power, P, in watts, is being supplied to the bulb?

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