p33_003 - inductor. If I is the maximum current, then U =...

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3. (a) All the energy in the circuit resides in the capacitor when it has its maximum charge. The current is then zero. If Q is the maximum charge on the capacitor, then the total energy is U = Q 2 2 C = (2 . 90 × 10 6 C) 2 2(3 . 60 × 10 6 F) =1 . 17 × 10 6 J . (b) When the capacitor is fully discharged, the current is a maximum and all the energy resides in the
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Unformatted text preview: inductor. If I is the maximum current, then U = LI 2 / 2 leads to I = r 2 U L = r 2(1 . 168 10 6 J) 75 10 3 H = 5 . 58 10 3 A ....
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