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How to convert?

  1. Aug 1, 2015 #1
    Hi
    Is it possible to convert coulomb to joule without knowing volt?
     
  2. jcsd
  3. Aug 1, 2015 #2
    I think you're asking at the wrong forum!
    Coulomb (C, AND THIS IS NOT THE SPEED OF LIGHT! :smile:) Is how many currents/Ampere travels for 1 second.
    Coulomb = Ampere * Sec; Sec = Coulomb/Ampere
    Joule = Watt * Sec
    So
    Joule = Watt * Coulomb / Ampere.
    Only if you know the power (W) and the current (A)
    But, then again.
    Volt = Wat / Ampere, so we're back to
    Joule = Volt * Coulomb
     
  4. Aug 1, 2015 #3

    mfb

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    They are completely different quantities. That's like asking "is it possible to convert number of apples to meters without knowing the time of day?" - the answer is no, that does not make sense.
     
  5. Aug 1, 2015 #4
    Ahhh, you're right! I'm trapped by this question.
    Perhaps this is true?
    Is it possible to convert miles to KM?
    Is it possible to convert joule to erg?
    Is it possible to convert Litre to cc?
    Something like that?
    [Add: Calories to joules]
     
  6. Aug 1, 2015 #5

    Borg

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    And, before you know it, it's been moved to the correct forum.

    To expand on Stephanus's post this is a nice diagram of the relationships:
    8weELeS.jpg
     
  7. Aug 1, 2015 #6
    Good picture. Very informative. Thanks.
    And for you to know (look at mfb's answer). I reply the wrong answer to the wrong question (at the wrong forum :smile:)
     
  8. Aug 1, 2015 #7

    mfb

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    Sure.

    (I moved the thread, by the way)
     
  9. Aug 1, 2015 #8
    Ahh, you're the one.
    Can I ask. I'm given the "First to answer" Badge. But I think my answer is wrong. I misunderstood the question. Can we have badge for wrong answer?
     
  10. Aug 1, 2015 #9

    Borg

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    And I reported it. :oldbiggrin:
     
  11. Aug 1, 2015 #10
    And we just chat each other without the OP responds to our answer??
    Or perhaps the op still watches Relativity sub forum to find his post :oldlaugh:
     
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