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rms value of current

Discussion in 'Electronics Homework Help' started by vead, Aug 22, 2016.

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  1. vead

    vead

    473
    14
    Nov 27, 2011
    Hello
    Please look at this calculation
    I _20160822_133533.JPG
    I don't understand why my answer is wrong. Correct answer is I rms =0.3535a and Iavg = 3.185A
     
  2. davenn

    davenn Moderator

    13,647
    1,884
    Sep 5, 2009
  3. vead

    vead

    473
    14
    Nov 27, 2011
    Have you seen the image that I have attached in my post? As I know if the current signal is given than we can find out rms current, peak current and average current.
    Current signal is represent in image. I have solved for rms current and average current. I did all calculation but when I looked in text books. I see my answer is not correct
     
  4. Ratch

    Ratch

    1,079
    330
    Mar 10, 2013
    If the book says the RMS for a 5 amp peak is 0.3535, then it is wrong. The correct RMS value is 3.536. Why are you using the RMS value to calculate the average current. You should use the peak value to get the correct answer.

    Ratch
     
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