The charge on the capacitor of a series LC circuit is given by Q = (15 C)

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The charge on the capacitor of a series LC circuit is given by Q = (15 μC) cos (1250t + π/4) where t is in seconds.

(a) Find the current as a function of time.

(b) Find C if L = 28 mH.

(c) Write expressions for the electrical energy Ue, the magnetic energy Um, and the total energy U.


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