O 20K.2 www. 7.5mA 80K 0-4MF 50K2 The switch in the circuit shown has been closed. for a long time and is opened at t = 0 Find: a) the initial value of V(t). b) the time constant for t >0. c) the numerical expression for V(t) after the switch has been opened. d) the initial energy stored in the capacitor

Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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O
20K-2
www.
7.5mA 80K
8:0
0-4MF
www
50 K2
The switch in the circuit shown has been closed.
for a long time and is opened at t = 0 Find:
a) the initial value of V(t).
b) the time constant for t >0.
c) the numerical expression for V(t) after the
switch has been opened.
d) the initial energy stored in the capacitor
Transcribed Image Text:O 20K-2 www. 7.5mA 80K 8:0 0-4MF www 50 K2 The switch in the circuit shown has been closed. for a long time and is opened at t = 0 Find: a) the initial value of V(t). b) the time constant for t >0. c) the numerical expression for V(t) after the switch has been opened. d) the initial energy stored in the capacitor
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