Question

Let's do a way better "keep out the noise" circuit than we did in class with the RC circuit, by adding an L. If R=1.50Ω and L=2.50μH, what C do you need to dial in to pick up the FM station at 88.7MHz? The next station down the dial is at 88.1MHz. What's the ratio of the currents in the circuit caused by the two stations (if they're both putting out the same V)?

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In a series LCR circuit, if I_max=0.250A, V_in=115V at 60.0Hz, L=325mH, and C=7.50μF: what's R? What are the reactances and impedance of this circuit, and the phase angle? Draw the phasor diagram for this circuit at the point in time when the current is maximum.

Answer 1