**Understanding Power Consumption in Cellular Devices**A typical cellular phone consumes an average of about 1.26 watts (W) of electrical power and operates on 3.80 volts (V).**(a)** What average current (in amperes, A) does the phone draw from its battery? [Input field for answer] A**(b)** Calculate the energy (in joules, J) stored in a fully charged battery if the phone requires charging after 6.43 hours of use. [Input field for answer] J**Hint:**To solve these problems, you may need to apply formulas relating power, voltage, current, and energy. Consider using Ohm's Law and the energy formula for electrical circuits.

Answered: Image /qna-images/answer/f21ef325-7e3e-4f01-9dc3-b06232a107ae.jpg

A typical cellular phone consumes an average of about 1.26 W of electrical power and operates on 3.80 V. HINT (a) What average current (in A) does the phone draw from its battery? (b) Calculate the energy (in J) stored in a fully charged battery if the phone requires charging after 6.43 hours of use.

A typical cellular phone consumes an average of about 1.26 W of electrical power and operates on 3.80 V. HINT (a) What average current (in A) does the phone draw from its battery? (b) Calculate the energy (in J) stored in a fully charged battery if the phone requires charging after 6.43 hours of use.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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