STUDY PROBLEMS

$6\mathrm{.}25$ The three inductors in the circuit in Fig. P$6\mathrm{.}25$ are con$-$

PSPICE

nected across the terminals of a black box at $t=0.$ nutrisim. The resulting voltage for $t>0$ is known to be

$v_o=2000e^{-100t}V$

If $i_1(0)=-6$A and $i_2(0)=1A,$ find

a$)i_o(0)$;

b$)i_o(t),t0$;

c$)i_1(t),t0$;

d$)i_2(t),t0$;

e$)$ the initial energy stored in the three inductors;

f$)$ the total energy delivered to the black box; and

g$)$ the energy trapped in the ideal inductors.

Figure P$6\mathrm{.}25$