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Current as a Function of Time for a Circuit

Let us now consider a different RC circuit. This time, the capacitor is initially charged (q(t) = q_0), and there is no source of EMF in the circuit. We will assume that the top plate of the capacitor initially holds positive charge. For this circuit, Kirchoff's loop rule gives IR + q/C = 0, or IR = -q/C.

Find the current I(t) as a function of time for this circuit.

Express your answer in terms of q_0, C, t, R, and e.

See attached file for full problem description and diagram.


Solution Summary

Word document attached shows the calculations for using Kirchoff's loop rule to find the current of an RC circuit.