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A 35

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A 35.0-V battery with negligible internal resistance, a 50.0-$2 resistor, and a 1.25-mH inductor with negligible resist all connected in series with an open switch. The switch is suddenly closed. Part A How long after closing the switch will the current through the inductor reach one-half of its maximum value? ANSWER: 2/ Part B How long after closing the switch will the energy stored in the inductor reach one-half of its maximum value?