MATLAB: How to plot the power vs frequency in rlc series circuits

mathematicsphysics

A series rlc circuit i which r=1ohm l=lmh and c =1micro farad is connectd to an ac generatordelivering 1v.make a plot of power delivery to the circuit as a function of the frequency and verify that the half width of the resonance peak is r/2wavelength×L .

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You can use Spectrum Analyzer in Simulink.

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MATLAB: RLC circuit equation problem

If you haven’t already solved it by now, you need to incorporate ‘t’ into your equation. Note that including it in ‘omega’ will make your code work:

Vm=240; f=50; R=5; L=0.004; C=0.0015; t=0:0.001:0.04;
for k1=1:length(t)
      omega=2*pi*f*t(k1);
      z(k1)=sqrt(R^2)+(omega*L-(1./(omega*C)).^2);
      i(k1)=Vm/z(k1);
end;
plot(t, i)

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