A 45-MH Inductor Is Connected in Series with a 60-Ω

question 61

Multiple Choice

A 45-mH inductor is connected in series with a 60-Ω resistor through a 15-V dc power supply and a switch. If the switch is closed at t = 0 s, what is the current after 7.0 ms?

• A) 250 mA
• B) 650 mA
• C) 550 mA
• D) 280 mA
• E) 850 mA

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