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Power equations

  1. Nov 7, 2004 #1
    hello, im in the 9th grade and i have forgoten some equations for Physics. I need to know the equations to find power if given resistance and voltage, current and voltage, etc. I know P=IV but im not sure on the equations for the different instances. Any help would great.
  2. jcsd
  3. Nov 7, 2004 #2
    I know of two others: Theres I^2 R, and V^2 / R . I have a little Ohms Law chart somewhere. I could find it and send you a scan of it if you want. I think it has about a dozen of the relationships on it.
  4. Nov 7, 2004 #3
    could u email it to me?
  5. Nov 7, 2004 #4
  6. Nov 8, 2004 #5
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