# Finding the value of supply voltage in this RLC circuit

We need to find the value of V, Power Factor, and Power Absorbed in the circuit.

I am stuck at resolving the two parallel branches.

I started out by labeling the impedances of the three given Resistance - Inductor/Capacitor pairs only to get stuck because the frequency is not provided.

Please give me a hint here.

• Find the complex impedance as a function of frequency: Hint: Zc=1/(sC) and ZL=sL, with s=iω (or jω if you prefer).
– Bart
Commented Feb 6, 2023 at 15:20
• @Bart And then proceed to find out the total z like we solve series and parallel circuits? Commented Feb 6, 2023 at 15:45
• If you don't know F and you don't know V then you can't solve it. Commented Feb 6, 2023 at 16:18
• @Andyaka by assuming f as 50Hz(maybe, the professor missed it?), I was able to solve for V. I don't know whether this counts or not Commented Feb 6, 2023 at 16:22
• @Doodoo28 yes, and then multiply it by 15A to find the driving voltage of the circuit as a function of ω.
– Bart
Commented Feb 7, 2023 at 11:36