Question

What resistance R (in Ω) must be connected in series with a 600 mH inductor and a 8.0 µF capacitor if the resulting RLC oscillating circuit is to decay to 50% of its initial value of charge in 90 cycles? Ω What is the resistance (in Ω) if the charge is to decay to 0.10% of its initial value in 90 cycles? Ω

Answer 1

40 cydles, 50/. 456.435 od/s 600x1ox8x10 T2 2x3.14 o.o1376 Sec. 456.435 Q. (1-e-/R) t 90T = qox0.01376 = 1.2384se _RC e 1.234 RC XI6O.6931 R 0.2234x 1o = 2. 234 x105 b) Nav l0 '/. (1-eRe) eR = 1-O.1 : O.9 Imo.9 s-O.16 54 RC R C A2384 O.1054 x8x\6 (.A687x ת.'סו