Question

Problem 2 (20 Points) For the circuit shown below, at $t = 0$ the switch moves from position a to position b: (a) Determine $v_c(0^-)$, $v_c(0^+)$, $v_c(\infty)$ (b) Determine $v_c(t)$ for $t > 0$ (c) Sketch $v_c(t)$ vs time for positive and negative time. For $t > 0$, how long (in secs) does it take for $v_c(t)$ to reach steady state? (d) Determine $i_c(t)$ for $t > 0$ 400 k$\Omega$ b t=0 a + ic 90 V 0.5 µF + $v_c$ 60 $\Omega$ 40 V +

          Problem 2 (20 Points)
For the circuit shown below, at $t = 0$ the switch moves from position a to position b:
(a) Determine $v_c(0^-)$, $v_c(0^+)$, $v_c(\infty)$
(b) Determine $v_c(t)$ for $t > 0$
(c) Sketch $v_c(t)$ vs time for positive and negative time. For $t > 0$, how long (in secs) does it take for $v_c(t)$ to reach steady state?
(d) Determine $i_c(t)$ for $t > 0$
400 k$\Omega$
b t=0 a
+ ic
90 V
0.5 µF
+ $v_c$
60 $\Omega$
40 V
+

Problem 2 (20 Points)
For the circuit shown below, at t = 0 the switch moves from position a to position b:
(a) Determine vc(0^-), vc(0^+), vc(∞)
(b) Determine vc(t) for t > 0
(c) Sketch vc(t) vs time for positive and negative time. For t > 0, how long (in secs) does it take for vc(t) to reach steady state?
(d) Determine ic(t) for t > 0
400 kΩ
b t=0 a
+ ic
90 V
0.5 µF
+ vc
60 Ω
40 V
+

Added by Tonya H.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Justin Swantek

Step 1

5F * 1V = 0.5V. Show more…

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Make sure the steps are clear, please. 90V (d) Determine i(t) for t > 0. b. Determine vct for t > 0. a. Determine vc0, vc0, vc. Problem 2 (20 Points) WW 400k: How long does it take for vc(t) to reach steady state? 0.5F Vc D0 = 1. (c) Sketch vc(t) vs time for positive and negative time. For t > 0, how long (in seconds) does it take for the circuit shown below, at t = 0, when the switch moves from position a to position b: 40V?