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5. 2 kQ 2 mF 2 mF 6 kQ The capacitors are initially charged to 50 V. The switch - is closed at t =

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5. 2 kQ 2 mF 2 mF 6 kQ The capacitors are initially charged to 50 V. The switch - is closed at t = 0 and reopened when the voltage on the capacitors reaches 15 V. a) How many seconds will it take to reach 15 V? b) In that time, how many joules of energy is dissipated by the 2 kQ resistor? ans. a) 38.5 sec. b) 1.14 J

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