# Solving for Alternating Currents

Question: Find the Q factor and (b) the resonance width for the circuit in problem 70 and (c) the power factor when w=8000 rad/s?

Problem 70 for reference:

A series of RLC circuits with L=10 mH, C=2uF, and R= 5 omega are driven by a generator with a maximum emf of 100V and a variable angular frequency w.

Find (a) the resonant frequency with sub 0 and (b) 1 sub rms at resonance, and (c) the phase angle delta.

https://brainmass.com/physics/ac/solving-alternating-currents-33723

#### Solution Preview

a.) Quality factor,

Q factor = XL/R

XL = w*L = 8000*10*10^(-3) = 80 ohm

R = 5 ohm

Therefore,

Q factor = ...

#### Solution Summary

This solution is comprised of the necessary equations and reasoning needed to solve each part of the above problem. All work required for solving is provided.

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