1. The net charge through a cross section of a circuit element is given by q(t) = 2t + t^2 C. As usual, t is in seconds. Find the current through the element in amperes.

2. The current through a given circuit element is given by i(t) = 2e^-t A. As usual, time t is in seconds. Find the net charge that passes through the element in the interval from t = 0 to t = infinity.

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