Q7: Suppose the current in a conductor decreases expo- nentially with time according to the equation I(t) = I0e2t/t , where I0 is the initial current (at t = 0) and t is a constant having dimensions of time. Consider a fixed observation point within the conductor.
(a) How much charge passes this point between t = 0 and t = t?
(b) How much charge passes this point between t = 0 and t = 10t?
(c) What If? How much charge passes this point between t =0 and t = infinity?