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Homework Help: Complex Number RLC Series Parallel Voltage and Current Supply

  1. Jul 1, 2012 #1
    Hi Everyone.

    I have been looking at this questions for a while now and have just hit a brick wall.

    I have found the source impedances using the the following

    Z of Current source = 1KΩ - jXC

    =1000 - j4000Ω = 4123<-75.96°

    Z of Voltage source = 4KΩ + jXL

    = 4000 + j1000Ω = 4123<14.04°

    Correct ?

    But from here I am not sure how to approach determining the current I2.

    Any kind of guidance would be greatly appreciated.


    Attached Files:

  2. jcsd
  3. Jul 1, 2012 #2
    how did you got your value for Xc ?
  4. Jul 1, 2012 #3
    Plus ! you can use KVL in the loop having voltage source !
  5. Jul 2, 2012 #4
    Using the following formula:


    =1/j(25K rads/sec)(10nF)

  6. Jul 2, 2012 #5
    shouldn't the angular frequency should be converted into hz ?
  7. Jul 2, 2012 #6
    I could'nt be sure but I assumse that when the formula states Omega it uses its standard form.
  8. Jul 2, 2012 #7
    i think we need to convert it !
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