joules / battery?

Question

how many joules are in the following types of alkaline batteries?:
aaa
aa
c
d
1.5v button cell
12v 500a car battery

Answer 1

AAA - ~1.5AHr

AA - ~ 3AHr

C - ~ 10AHr

D - ~ 15AHr

1.5V alkaline button - ~ 0.3AHr

12V, 500A (CCA) - ~ 50AHr



These are all very approximate, research highly recommended. And also based on discharge of at least 5 hours at 1/5 AHr capacity.



To convert to joules, which is watt-seconds, simply multiply the loaded voltage by the amp-hour capacity by 3600 (3600 seconds in an hour)



Ex.-



AA - 3AHr * 1.5V * 3600 = 16,200J



.

Answer 2

I wish they wouldn't complicate physics questions in college. This just makes a student use the calculator and wrestle with mismatched units. There's more you need to know about car batteries to get a sensible answer. We can suppose the battery is 12-13.8 volts. We might have a 100 ampere battery and that's amperes per hour. Some of the others did the dimensional analysis, showing you how to convert units. So since one joule is the dissipation or potential of one volt and one ampere, you will do a lot of multiplying and end up with a very large number. You might as well be lifting barbells with your brain. Tell your teacher I said that and he should keep the lessons basic because courses have limited time to cover sufficient material for students to end up understand the subject when the course ends. I never used a whole textbook in any class at university and at today's prices texts should be sold by the chapter instead of the whole book. Out of a $100 textbook you use about $30- what a racket. I bet your teacher wrote the textbook. There will be a new edition next year.

Answer 3

find the charge ( q) and the potencial energy ( volts ) and solve the equation V = Joules over q and you should have your answer