A series RLC circuit has values of R = 67ohm, C = 22 mu F, and L = 67 mH, and is

Question

A series RLC circuit has values of R = 67ohm, C = 22 mu F, and L = 67 mH, and is driven by an AC source with V_RMS = 12 V and f = 81 Hz. When the voltage is 7.2 V across the resistor, what is the voltage across the inductor? You may use preliminary results from the supplemental lecture notes you don't have to do the whole problem from the beginning, but make sure you understand how those preliminary results were derived, and modify them in the right way for the differences between the problem in the notes and this one.

Explanation / Answer

i=v/R=7.2/67=.107A

current through all will be same.

so,

V_L=i*x_L

=.107*2*3.14*81*67*10^{-3}=3.65 V

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