Question

In an oscillating LC circuit, L = 29.0 mH and C = 7.30 µF. At time...

In an oscillating LC circuit, L = 29.0 mH and C = 7.30 µF. At time t = 0 the current is 9.20 mA, the charge on the capacitor is 3.00 µC, and the capacitor is charging.

(a) What is the total energy in the circuit?
  J

(b) What is the maximum charge on the capacitor?
  C

(c) What is the maximum current?
  A

(d) If the charge on the capacitor is given by q = Q cos(?t + ?), what is the phase angle ??
  °

(e) Suppose the data are the same, except that the capacitor is discharging at t = 0. What then is ??
  °

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