Converting Coulombs to Joules Without Voltage

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Discussion Overview

The discussion centers around the possibility of converting coulombs to joules without knowing the voltage. Participants explore the relationships between these units and express varying degrees of understanding regarding their conversion and the nature of the quantities involved.

Discussion Character

  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants assert that coulombs and joules are fundamentally different quantities, likening the conversion question to nonsensical comparisons, such as converting apples to meters.
  • One participant suggests that to convert coulombs to joules, knowledge of voltage is necessary, as joules can be expressed in terms of volts and coulombs.
  • Another participant humorously reflects on being "trapped" by the question and draws parallels to other unit conversions, questioning if similar logic applies to other units like miles to kilometers or joules to ergs.
  • There is a mention of a diagram that illustrates the relationships between these units, although its content is not detailed in the discussion.
  • Several participants express confusion or self-reflection regarding their understanding of the topic, with one questioning the validity of receiving a badge for a potentially incorrect answer.

Areas of Agreement / Disagreement

Participants generally disagree on the feasibility of converting coulombs to joules without voltage, with some asserting it is impossible while others explore the implications of the question. The discussion remains unresolved, with no consensus reached.

Contextual Notes

Participants express uncertainty about the relationships between the units involved and the assumptions underlying their discussions. There is no resolution on the mathematical or conceptual steps necessary for conversion.

Ankhen
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Hi
Is it possible to convert coulomb to joule without knowing volt?
 
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Ankhen said:
Hi
Is it possible to convert coulomb to joule without knowing volt?
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
 
Ankhen said:
Hi
Is it possible to convert coulomb to joule without knowing volt?
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.
 
mfb said:
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.
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]
 
Stephanus said:
I think you're asking at the wrong forum!
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
 
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Borg said:
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:
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:)
 
Stephanus said:
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]
Sure.

(I moved the thread, by the way)
 
mfb said:
(I moved the thread, by the way)
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?
 
mfb said:
(I moved the thread, by the way)
Stephanus said:
Ahh, you're the one.
And I reported it. :oldbiggrin:
 
  • #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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