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Homework Help: Finding Current given kilo-ohms and volt

  1. May 20, 2012 #1
    1. The problem statement, all variables and given/known data

    What is the current in a 46 kilo ohm resistor with 150V across it?

    Given : 46 Kilo ohms
    150 V

    Answers has to be in Amperes

    2. Relevant equations

    Use Ohm's Law R = (V/I)

    3. The attempt at a solution

    I converted the kilo ohms back to ohms so 46 * 10 ^ 3 is 46,000 ohms. Divide 150 by 46,000 ohms and I get .003 as the answer. This answer is absurd but I converted the kilo ohms to ohms. I dont see where I went wrong. Seems like an easy question. =/
     
    Last edited: May 20, 2012
  2. jcsd
  3. May 20, 2012 #2

    Integral

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    Why do you think the answer you got is wrong?
     
  4. May 20, 2012 #3
    All of my answers from my Physics homework usually have a few digits before the decimal. This cannot be right.
     
  5. May 20, 2012 #4

    SammyS

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    What are the units for your answer?

    Why not give the answer in milliamperes ?

    Don't forget sig. figs.
     
  6. May 20, 2012 #5
    Answer has to be in Amperes
     
  7. May 20, 2012 #6

    SammyS

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    Then you do get an answer that's a small fraction of 1 Ampere.
     
  8. May 20, 2012 #7
    i keep getting .003 from my calculcation and my online homework website says its not correct.
     
  9. May 20, 2012 #8
    answer is 3.3×10^−3 amperes
     
  10. May 20, 2012 #9

    SammyS

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    Significant Digits / Significant Figures.
     
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