A series RLC circuit has R = 200 $\Omega$, L = 40.0 mH, and C = 120 pF.What is the impedance of this circuit at resonance?
A) 18.0 k$\Omega$
B) 36.0 k$\Omega$
C) 400 $\Omega$
D) 300 $\Omega$
E) 200 $\Omega$

Question

Quizplus · Accepted Answer

At resonance, the impedance of a series RLC circuit is purely resistive and equals the resistance R, which is 200 $\varOmega$.

A Series RLC Circuit Has R = 200 Ω\OmegaΩ , L = 400 MH, and C = 120 PF

A Series RLC Circuit Has R = 200 $\Omega$ , L = 400 MH, and C = 120 PF