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Construct Your Own a battery used to supply energy to a
Chapter 19, Problem 12(choose chapter or problem)
Problem 12PE
Construct Your Own Problem
Consider a battery used to supply energy to a cellular phone. Construct a problem in which you determine the energy that must be supplied by the battery, and then calculate the amount of charge it must be able to move in order to supply this energy. Among the things to be considered are the energy needs and battery voltage. You may need to look ahead to interpret manufacturer’s battery ratings in amperehours as energy in joules.
Questions & Answers
QUESTION:
Problem 12PE
Construct Your Own Problem
Consider a battery used to supply energy to a cellular phone. Construct a problem in which you determine the energy that must be supplied by the battery, and then calculate the amount of charge it must be able to move in order to supply this energy. Among the things to be considered are the energy needs and battery voltage. You may need to look ahead to interpret manufacturer’s battery ratings in amperehours as energy in joules.
ANSWER:
Solution 12PE
Step 1 of 3
The battery on a popular low budget Smartphone lists its battery capacity as 3000 mAh and its voltage as 12 V. The 3000 mAh rating means that the battery needs 129600 J to be completely charged.