A 150-H Inductor Is Connected in Series with a 200-Ω Resistor

question 4

Multiple Choice

A 1.50-H inductor is connected in series with a 200-Ω resistor through a 15.0-V dc power supply and a switch. If the switch is closed at t = 0 s, what is the energy stored by the inductor 20.0 ms after the switch is closed?

• A) 0.910 mJ
• B) 1.83 mJ
• C) 3.65 mJ
• D) 7.31 mJ
• E) 5.48 mJ

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