Explore BrainMass

Evaluation of a RLC Circuit

Hi. Can someone please walk me through how to do the following problem?

Question: A radio tuning circuit contains an RLC circuit with R=5.0 ohms and L=2.8 micro-H.
(a) What capacitance is needed to produce a resonance frequency of 95 MHz?
(b) If the capacitance is increased above the value found in part (a), will the impedance increase, decrease, or stay the same? Explain.
(c) Find the impedance of the circuit at resonance.

Thank you.

Solution Preview

a) Resonance frequency = W0 = 2*pi*f = 1/sqrt(LC)
C = 1/(4*pi^2*f^2*L)
= 1.00E-12 F = 1 pF.

b) Impedance is minimum at ...

Solution Summary

This solution provides the necessary information required to solve each part of this problem. Reasoning and/or formulas are provided as they pertain to the questions being asked.