An LC circuit has an inductance of 30.0 mH and a capacitance of 6.0 μF. At time t = 0, the charge on the capacitor is 4.0 μC, and the current is 6.0 mA. The total energy is 7.9×10−7 J. 1.9×10−6 J. 1.3×10−6 J. 3.7×10−6 J. 5.4×10−7 J.
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An circuit has an inductance of and a capacitance of . At time , the charge on the capacitor is , and the current is . The total energy is
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