How to convert?

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1. Aug 1, 2015

Ankhen

Hi
Is it possible to convert coulomb to joule without knowing volt?

2. Aug 1, 2015

Stephanus

I think you're asking at the wrong forum!
Coulomb (C, AND THIS IS NOT THE SPEED OF LIGHT! ) 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

3. Aug 1, 2015

Staff: Mentor

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.

4. Aug 1, 2015

Stephanus

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?

5. Aug 1, 2015

Borg

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:

6. Aug 1, 2015

Stephanus

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 )

7. Aug 1, 2015

Staff: Mentor

Sure.

(I moved the thread, by the way)

8. Aug 1, 2015

Stephanus

Ahh, you're the one.

9. Aug 1, 2015

Borg

And I reported it.

10. Aug 1, 2015

Stephanus

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