oscillating LC circuit In an oscillating LC circuit, L = 28.0 mH and C = 7.90 uF

Question

oscillating LC circuit

In an oscillating LC circuit, L = 28.0 mH and C = 7.90 uF. At time t = 0 the current is 9.10 mA, the charge on the capacitor is 3.90 mu C, and the capacitor is charging. What is the total energy in the circuit? J What is the maximum charge on the capacitor? C What is the maximum current? A If the charge on the capacitor is given by q = Q cos(omega t + phi), what is the phase angle phi? degree Suppose the data are the same, except that the capacitor is discharging at t = 0. What then is phi? degree

Explanation / Answer

(a) E = 2.122810^-6

(b) q max = 5.8*10^-6

(c) i max = 12.31 ma

(d) phi = 47.74 degree

(e) -132.25 degree

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