A cell phone battery uses chemistry to create a charge separation between the terminals (anode and cathode). Such a battery is listed as having a capacity of Q = 5.5E-08 C. Part (a) How many free electrons does the battery contain, N? Part (b) If there are 1.0 million electrons moving through the phone every second how long will the battery last in seconds? Part (c) Current, I, is given in amps which are coulombs per second. What is the current passing through the phone?
A cell phone battery uses chemistry to create a charge separation between the terminals (anode and cathode). Such a battery is listed as having a capacity of Q = 5.5E-08 C. Part (a) How many free electrons does the battery contain, N? Part (b) If there are 1.0 million electrons moving through the phone every second how long will the battery last in seconds? Part (c) Current, I, is given in amps which are coulombs per second. What is the current passing through the phone?
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter21: Current And Direct Current Circuits
Section: Chapter Questions
Problem 61P
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A cell phone battery uses chemistry to create a charge separation between the terminals (anode and cathode). Such a battery is listed as having a capacity of Q = 5.5E-08 C.
Part (a) How many free electrons does the battery contain, N?
Part (b) If there are 1.0 million electrons moving through the phone every second how long will the battery last in seconds?
Part (c) Current, I, is given in amps which are coulombs per second. What is the current passing through the phone?
Expert Solution
Step 1
Given charge
Q=5.5×10-8C
Charge on electron = 1.6×10-19
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