Energy Stored in an Inductor
A series circuit is constructed with a 12 V battery, a 4 Ω resistor, and a 2 H inductor. The circuit is initially open. After the switch is closed, the current increases until it reaches a constant, steady-state value. What is the energy stored in the inductor at steady state?
A
24 J
B
18 J
C
9 J
D
48 J
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