Work out rlc parallel circuit instantly with clear inputs, formula shown and shareable results.
A parallel RLC tank has maximum impedance at resonance, equal to R, because the inductive and capacitive susceptances cancel. Q = R sqrt(C/L) here — the reverse of the series case — and bandwidth is f0 divided by Q.
Parallel RLC
Y = sqrt(G^2 + (wC - 1/wL)^2); Z = 1/Y; Q = R sqrt(C/L); BW = f0 / Q
Electrical results are planning estimates only. Verify against the applicable wiring rules (IEC 60364, BS 7671, NEC or local code) and have all installation work designed and checked by a qualified electrician.
Because in parallel a larger resistance means less damping, whereas in series a larger resistance means more. Q therefore rises with R in parallel.
As the frequency-selective load in oscillators, RF amplifiers and traps, where a high impedance at one frequency is wanted.