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RLC Circuits

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Why bother with a post grad? Are they even worth it? Have your say! 26-10-2016
    • Thread Starter

    Hey! I have this question and I've completed it but it's only worth three marks and i seem to have done a lot of work, if anyone could try it an let me know if it matches my answer!

    A circuit comprises a resistor of 50 Ω, a capacitor of 200 µF and an inductor of 100 mH connected in series. A voltage supply of 230V at 50Hz is connected to the circuit.

    What current is drawn by the circuit?

    A: I found it by I=v/z where z= sqr route (r^2 + (Xl-Xc)^2)
    so yeh i got the answer I = 4.84 A to find the phase i did phase= tan^-1(Xl-Xc/R) where i got the ohase 17.22 degrees. So my final answer was I= 4.84 at 17.22 degrees A.

    Q: Sketch the phasor diagram for the circuit indicating the relative phase of the voltage drops across each of the components.
    A: I don't really know how to do this one soif anyone could help me out
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