An Inductance L and a Resistance R Are Connected in Series

question 14

Multiple Choice

An inductance L and a resistance R are connected in series to an ideal battery. A switch in the circuit is closed at time 0, at which time the current is zero. The energy stored in the inductor is a maximum:

• A) just after the switch is closed
• B) at the time t = L/R after the switch is closed
• C) at the time t = L/R² after the switch is closed
• D) at the time t = 2L/R after the switch is closed
• E) a long time after the switch is closed

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