Recent content by Morgz129

  1. M

    Sketching Waveforms to represent Transient Responses

    i am completely unsure on what is being asked by this question. i know the word sketch suggests a rough drawing and google shows up roughly what the waveforms should look like but what's thrown me off is the fact that the equation 'b' has twice the frequency as the other two. this is a topic...
  2. M

    Calculating Total Harmonic Distortion: Is My Result Accurate?

    yeah its definitely a contentious question, interesting, thankyou for your help BVU
  3. M

    Calculating Total Harmonic Distortion: Is My Result Accurate?

    Hi could anyone please confirm I have this somewhere near as i am unsure on any other way of working it out? Thanks
  4. M

    Calculating Total Harmonic Distortion: Is My Result Accurate?

    right i have just had another go and get a totally different figure: I1= √15.8 = 3.97.. this is a peak value so multiply by 0.707 to get rms value of 2.8Amps In = √8.7+6.3= 3.87 .. multiply by 0.707 = 2.73Amps using the given formula: 1/2.8 * (2.73) =0.975 multiply by 100 = 97.5% Is that...
  5. M

    Calculating Total Harmonic Distortion: Is My Result Accurate?

    Hi BVU thanks for the reply, i came to those figures as the current in the graph is measured in i2.. so i took the square root of the current and then multiplied by √2 to give the rms value required in the question.
  6. M

    Calculating Total Harmonic Distortion: Is My Result Accurate?

    i have started by taking the rms values of the results from the spreadsheet making: I1= 2.818 amps I3=2.095 amps I5=1.767 amps i then added I3 and I5 to give me 3.863 amps which i then input into the formula to yield a result of 135.202% which seems way off to me, any help would be greatly...
  7. M

    Engineering Nodal analysis of an AC circuit

    My mistake it should be divided by z3, but if I may ask why would it be ((v2-v30)/z3) instead of ((v30-v2)/z3)?
  8. M

    Engineering Nodal analysis of an AC circuit

    Homework Statement Hi I have this question as part of my assignment but cannot get my head around part b, I have worked out part a with an answer of -9.2+17.3i amps which from a previous thread I know is correct, but can't understand why the equations given in the previous thread are different...
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