An LC Circuit Has an Inductance of 20 MH and a Capacitance

question 9

Multiple Choice

An LC circuit has an inductance of 20 mH and a capacitance of 5.0 $\mu$ F. At time t = 0 the charge on the capacitor is 3.0 $\mu$ C and the current is 7.0 mA. The total energy is:

• A) 4.1 *10^-7 J
• B) 4.9 * 10^-7 J
• C) 9.0 *10^-7 J
• D) 1.4 * 10^-6 J
• E) 2.8 * 10^-6 J

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