In the circuit below, the switch is initially open (so there is no current). We close the switch at t = 0 s. If the electromotive force provided by the ideal DC power source is 6 V, determine: a) The total current at t = 0 s. b) The total current at t = 0. c) The total current as a function of time, i(t). After waiting a very long time, the current has increased to its highest value and is steady. In this situation, we open the switch again. d) Determine the decreasing current as a function of time, ia(t).

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