Problem
For the circuit in the figure, let C = 14.0 nF, L = 20 mH, and R = 70.0 Ω.
i. Calculate the frequency of oscillation of the circuit after the capacitor has been charged and the switch has been connected to point a.
ii. How long will it take for the amplitude of the oscillations to decrease to 10.0% of their original value?
iii. What value of R would result in a critically damped circuit?