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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

    DaveC426913

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    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.

    http://en.wikipedia.org/wiki/Electronic_color_code#Resistor.2C_capacitor_and_inductor"
     
    Last edited by a moderator: Apr 24, 2017
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