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

question 8

Multiple Choice

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

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

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