A 60-MH Inductor and a 3 $\Omega$ Resistor Are Wired in Series to a 12-V Ideal Battery

question 79

Multiple Choice

A 6.0-mH inductor and a 3.0- $\Omega$ resistor are wired in series to a 12-V ideal battery.A switch in the circuit is closed at time t = 0, at which time the current is zero.2.0 ms later the energy stored in the inductor is:

• A)0 J
• B)9.6 *10^-3 J
• C)1.9 *10^-2 J
• D)2.5 *10^-2 J
• E)3.8 * 10^-2 J

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