- #1
zakaqel
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Homework Statement
A RLC circuit has a resonance frequency of 6 KHz. When it is driven by a 8 KHz ac generator, it has an impedance of 1 k W. What are R, L and C in the circuit?
Homework Equations
The Attempt at a Solution
the equation for the resonant frequency will be
fo = 1 / 2 π √(L C)
the equation for the impedence will be
Z = √[R2 + (XL - XC)^2]
where XL = 2 π f L
XC = 1 / 2 π f C
f = 8 x 10^3 Hz
fo = 6 x 10^3 Hz
Z = 1 x 10^3 Ω
How am I supposed to solve for the three unkowns(R,L,C) with only two equations? Is there a third relationship for R?