Question

3. In the following network the switch has been in position 'a' for a long time. At t=0, the switch moves instantaneously to position 'b'. a. Draw circuit when the switch is in position 'a' and find the current $v_o(0)$ across capacitance for t < 0 b. Draw circuit when switch is in position 'b' for $t \ge 0$ and find the current $v_o(\infty)$ c. Find the total resistance seen by capacitance for t > 0, and find time constant $\tau$ d. Find the value of $v_o(t)$ across capacitance, and current $i_o(t)$ for t > 0 e. Find voltage $v_g(t)$, initial energy stored in capacitance W(0) and energy stored at t = 10 µ sec i.e. W(10 ? sec)

          3. In the following network the switch has been in position 'a' for a long time. At t=0, the
switch moves instantaneously to position 'b'.
a. Draw circuit when the switch is in position 'a' and find the current $v_o(0)$ across
capacitance for t < 0
b. Draw circuit when switch is in position 'b' for $t \ge 0$ and find the current $v_o(\infty)$
c. Find the total resistance seen by capacitance for t > 0, and find time constant $\tau$
d. Find the value of $v_o(t)$ across capacitance, and current $i_o(t)$ for t > 0
e. Find voltage $v_g(t)$, initial energy stored in capacitance W(0) and energy stored at t
= 10 µ sec i.e. W(10 ? sec)

3. In the following network the switch has been in position 'a' for a long time. At t=0, the
switch moves instantaneously to position 'b'.
a. Draw circuit when the switch is in position 'a' and find the current vo(0) across
capacitance for t < 0
b. Draw circuit when switch is in position 'b' for t ≥ 0 and find the current vo(∞)
c. Find the total resistance seen by capacitance for t > 0, and find time constant τ
d. Find the value of vo(t) across capacitance, and current io(t) for t > 0
e. Find voltage vg(t), initial energy stored in capacitance W(0) and energy stored at t
= 10 µ sec i.e. W(10 ? sec)

Added by Manuela R.

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