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

What is tolerance?

  1. Jul 16, 2009 #1
    I usually see it when i'm looking at stuff with with caps and resistors, but have no idea what it is, and i cant respect a value if i dont know what it is. i did a quick google and didnt find anything, maybe im just not looking hard enough, but i thought i would ask
  2. jcsd
  3. Jul 16, 2009 #2


    User Avatar
    Gold Member

    A resistor has a resistance with a margin of error called tolerance. It is usually 5, 10 or 20%. So, a 100 Ohm resistor with a tolerance of 10% might have an actual resistance anywhere from 90 to 110 Ohms.

    Last edited by a moderator: Apr 24, 2017
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook