A typical cellular phone consumes an average of about 1.60 W of electrical power and operates on 3.80 V. HINT (a) What average current (in A) does the phone draw from its battery? A (b) Calculate the energy (in J) stored in a fully charged battery if the phone requires charging after 5.43 hours of use. J

A typical cellular phone consumes an average of about 1.60 W of electrical power and operates on 3.80 V. HINT (a) What average current (in A) does the phone draw from its battery? A (b) Calculate the energy (in J) stored in a fully charged battery if the phone requires charging after 5.43 hours of use. J

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter10: Direct-current Circuits

Section: Chapter Questions

Problem 25P: A 12.0-V emf automobile battery has a terminal voltage of 16.0 V when being charged by a current of...

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Question

A typical cellular phone consumes an average of about 1.60 W of electrical power and operates on 3.80 V.
HINT
(a) What average current (in A) does the phone draw from its battery?
A
(b) Calculate the energy (in J) stored in a fully charged battery if the phone requires charging after 5.43 hours of use.
J

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