Colombs,Amps,Volts,and Watts. HELP

  • Thread starter Mattius_
  • Start date
  • #1
1
0
Colombs,Amps,Volts,and Watts. HELP!!!!

Homework Statement



A given car battery is rated at 250 amp-hours. Does this rating indicate the amount of energy, power, charge, voltage, or current that can be drawn from the battery? Explain.

Homework Equations



Coulombs, Amps, Volts, Watts.

The Attempt at a Solution



I first calculated the coulombs that this battery produces in one hour. That turned out to be 250amp-hours X 3600seconds= 900,000.

Is this the furthest that I can get?? I am really stumped because I thought I could get more than just the number of coulombs. I tried finding out how many electrons pass through (2.25x10^22) but it seems like I cannot learn joules or voltage by knowing how many total electrons a battery is capable of dispensing.

I guess my problem is that I am equating the total number of electrons as a sort of total amount of energy. This is wrong?:cry:
 

Answers and Replies

  • #2
5,428
292
Your calculation has the right dimensions and is correct. But the 3600 is not seconds, it's just a number to convert the hours to seconds.

Amp-hours is charge because amp=Coulomb/s.
 

Related Threads on Colombs,Amps,Volts,and Watts. HELP

  • Last Post
Replies
18
Views
1K
Replies
3
Views
1K
  • Last Post
Replies
5
Views
1K
  • Last Post
Replies
3
Views
1K
  • Last Post
Replies
3
Views
2K
  • Last Post
Replies
14
Views
2K
  • Last Post
Replies
9
Views
2K
Replies
3
Views
726
  • Last Post
Replies
1
Views
1K
Replies
7
Views
5K
Top