- #1

questions_uk

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If there is a reading of 10 mV would you just do 10/9.29 to convert to Joules?

Thanks.

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- Thread starter questions_uk
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- #1

questions_uk

- 74

- 0

If there is a reading of 10 mV would you just do 10/9.29 to convert to Joules?

Thanks.

- #2

whybother

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10mV is in miliVolts, or 10mV = (10/1000) V

So to convert 10mV into, let's call it Unit J (instead of Joules for a minute) (instead of mJ), using the given conversion, mathematically it's:

[tex] 10mV = {{10mV \over 1000{mV \over V}} \over 9.29 {V \over J}} [/tex]

(writing it out that way with is just to maybe help you see how the units work)

EDIT: But as an important note... Volts aren't the same as Joules

A Joule is a unit of energy, and 1 Volt is equal to 1 Joule of energy per Coulomb of charge, so V = J/C, in general. You can't convert from Volts to Joules, but you can convert from V to J/C, which is what I assume you are really doing, and the 9.29 has some unit related to charge.

So to convert 10mV into, let's call it Unit J (instead of Joules for a minute) (instead of mJ), using the given conversion, mathematically it's:

[tex] 10mV = {{10mV \over 1000{mV \over V}} \over 9.29 {V \over J}} [/tex]

(writing it out that way with is just to maybe help you see how the units work)

EDIT: But as an important note... Volts aren't the same as Joules

A Joule is a unit of energy, and 1 Volt is equal to 1 Joule of energy per Coulomb of charge, so V = J/C, in general. You can't convert from Volts to Joules, but you can convert from V to J/C, which is what I assume you are really doing, and the 9.29 has some unit related to charge.

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