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

question 59

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 0, at which time the current is zero. 2.0 ms later the energy stored in the inductor is:

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

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