1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Conversion Factor

  1. Apr 15, 2009 #1
    I have a list of readings in mV and it says "The metre readings have a conversion factor of 9.29 V/J.

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

    Thanks.
     
  2. jcsd
  3. Apr 15, 2009 #2
    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.
     
    Last edited: Apr 15, 2009
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Conversion Factor
  1. Trig conversion (Replies: 1)

  2. Factor This (Replies: 3)

  3. Factorize (Replies: 6)

  4. Hexadecimal conversion (Replies: 2)

  5. Conversion problem. (Replies: 1)

Loading...