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Total tolerance

  1. Mar 29, 2004 #1
    If there were 2 wires, and one of the wire has a resistance of 50 Ohms with a tolerance of 5%, while the second wire has a resistance of 60 Ohms with a tolerance of 3%. The total resistance would be 110 Ohms but what about the total tolerance? Would it be 8%?
     
  2. jcsd
  3. Mar 30, 2004 #2

    Stingray

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    The first one is 50+/-2.5, and the second is 60+/-2. The error in the sum is sqrt(2.5^2+2^2)=3 ohms. This equates to 3%.
     
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