Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

What does these mathematic simbol meens?

  1. May 13, 2008 #1
  2. jcsd
  3. May 13, 2008 #2
    Hi.

    It means that you have a 1k ohm resistor in parallel with a 2k ohm resistor.
    To calculate parallel resistors use 1/R=1/R1+1/R2+ ... +1/Rn.
    For just two resistors you can use R=R1*R2/(R1+R2).
    So you equation reads 15/(2000 + (1000*2000)/(1000 + 2000))=0.005625
    Hope this helps.
     
  4. May 13, 2008 #3
    thanks
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook