An LC circuit like the one shown in Figure 32.16 contains an 90.0 mH inductor an

Question

An LC circuit like the one shown in Figure 32.16 contains an 90.0 mH inductor and a 19.0 ?F capacitor that initially carries a 190 ?C charge. The switch is open for t < 0 and then closed at t = 0.

(a) Find the frequency (in hertz) of the resulting oscillations.
_____Hz
(b) At t = 1.00 ms, find the charge on the capacitor.
____ ?C
(c) What is the current in the circuit?
____mA

Question Part Points Submissions Used An LC circuit like the one shown in Figure 32.16 contains an 90.0 mH inductor and a 19.0 F capacitor that initially carries a 190 C charge. The switch is open for t

Explanation / Answer

1. w = 1/sqrt(LC) = 764.719 rad/s
f = 2pi*w = 121.7085 Hz
2. Q(t) = Qmax*cos(wt) = 120.265176810322

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