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Homework Help: The maximum and minumum Current

  1. Sep 19, 2007 #1
    A resistor has the following color code red, red, orange, gold. Determine the maximum and minimum currents, in mA, you should expect to measure when a 16 V source is connect accross the resistor.

    I dnt no if this is right...
    22000 Ohms +- 5%

    22000 + 5%= 23100ohms--->23,1K MAX
    22000 - 5%= 20900ohms--->20,9K MIN

    Now i dnt no if the following is good. Since im using a 16V source i have to Use ohms law?
    and what i got for both is a

    -maximum of 0.69mA
    -Minimum of 0,76mA
  2. jcsd
  3. Sep 19, 2007 #2


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    22000 Ohms +- 5%

    Red = 2, so Red Red is 22.

    Orange = 3, so the multipliyer is 1000 or 103,

    and the nominal resistance is 22000 Ohms. or 22 kOhms.

    the tolerance band is gold, so +/- 5%

    Use V/R to get I, and min I = V/ max R.

    This is useful - http://www.uoguelph.ca/~antoon/gadgets/resistors/resistor.htm [Broken]

    so is this - http://www.csgnetwork.com/resistcolcalc.html
    Last edited by a moderator: May 3, 2017
  4. Sep 19, 2007 #3
    Thx thats what i had and it seems right :) thx again
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