The electric current in a discharging R-C circuit is given by i = i0e -t/RC where io,R and C are constant parameters and t is time. Let io = 2.00 A, R=6.00 x 105 Ω and C = 0.500 μF
(a) Find the current at t = 0.3 s.
(b) Find the rate of change of current at t = 0.3 .
(c) Find approximately the current at t = 0.31 s.
