In the circuit of figure, the switch $$'S'$$ has remained open for a long time. The switch closes instantaneously at $$ t = 0$$. n

(a) Find $${V_0}$$ for $$t \le 0$$ and as $$t \to \infty $$.
(b) Write an expression for $${V_0}$$ as a function of time for $$0 \le t \le \infty $$.
(c) Evaluate $${V_0}$$ at $$t = 25\,\,\mu $$sec.

The Thevenin equivalent voltage V_TH appearing between the terminals A and B of the network shown in Fig. is given by

A Delta-connected network with its Wye-equivalent is shown in Fig.P2.4. The resistance R₁, R₂ and R₃ (in ohms) are respectively

Identify which of the following is NOT a true of the graph shown in Fig.