Capacitor practice problems
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Read the capacitor class notes.

The voltage across a capacitor with C = 68 μF varies in time as shown in the graph,
where VP = 18 V, t1 = 0.5 s, t2 = 1 s, and t3 = 0.2 s.
Calculate the capacitor currents during each of the time intervals, i1 (during t1), i2 (during t2), and i3 (during t3).