Question

In the circuit to the right, the DC source, V, 2 volts for all time. The switch has been open a long time. Also, the capacitor is charged to 1 volt, so vd0-) =1. At t-0, the switch closes. Assume: C ¼ F, - 1 H, R-10 ohms. a) Find the current through the resistor for t> 0. (hint: at t-0+, di/dt- .04 amps per second.*) Plot your result using MATLAB or EXCEL. b) Att -0- what is the energy stored in the capacitor in joules, and what is the energ stored in the inductor? c) After the switch is closed for a long time, what is the energy stored in the capacitor and in the inductor? (*Finding this initial condition is tricky. See if you can do it. If not, just use the .04 value and move on.)

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