Suppose the current in a conductor decreases exponentially with time according to the equation I(t) = I0e-t/τ, where I0 is the initial current (at t = 0), and τ is a constant having dimensions of time. Consider a fixed observation point within the conductor. (Use the following as necessary: I0 and τ)

(a) How much charge passes this point between t = 0 and t = τ? (If applicable, round any coefficients to 3 decimal places.)
Q(τ) =

(b) How much charge passes this point between t = 0 and t = 10τ? (If applicable, round any coefficients to 5 decimal places.)
Q(10τ) =

(c) How much charge passes this point between t = 0 and t = [infinity]? (If applicable, round any coefficients to 3 decimal places.)
Q([infinity]) =