# Harmonic voltage source, how to calculate it

I have this scheme.

I have all the parameters: L1=110 uH

C1=160 nF

C2=5 nF

Rt=1.2 kΩ

But I dont understand how to calculate the voltage source. I have this formula for it: So my job is to calculate $$\ i_{2}^1 \$$ in harmonic $$\w_{1}\$$, $$\ i_{2}^2 \$$ in harmonic $$\w_{2}\$$, $$\ i_{2}^3 \$$ in harmonic $$\w_{3}\$$, $$\ i_{2}^4 \$$ in harmonic $$\w_{4}\$$.

QUESTION: I don't get how to calculate this voltage source. I'm not sure how to replace sin(wt), what's the the time(t)?

• Smells of XY - ultimately what are you trying to achieve with this question? May 12, 2020 at 13:42
• What is XY? I'm trying to solve my problem for university. May 12, 2020 at 13:44
• XY problem May 12, 2020 at 15:32
• Seems like it's not. I added all the info just to not waste time for any further questions, if it somehow happens. May 12, 2020 at 15:59
• Do you want to know what $sin(\omega_n\cdot t)$ means? $\omega_{1-5}$ are not harmonics BTW. $i_2^4$ reads as the 4th power of $i_2$ - is that actually what you mean? May 12, 2020 at 16:05