R- 1k ohm; L=1nH for the circuit represented in Fig. 8.1, and with the knowledge that i(0) = -3mA:
a) Write an expression for i(t) valid for all t>=0
b) Compute i(t) at t=0, t=1ps, 2ps, and 5ps
c) calculate the energy stored in the inductor at t=0, t=1ps, and t=5ps.