From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001
From: priyanka
Date: Wed, 24 Jun 2015 15:03:17 +0530
Subject: initial commit / add all books

---
 1529/CH18/EX18.1/18_01.sce | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100755 1529/CH18/EX18.1/18_01.sce

(limited to '1529/CH18/EX18.1/18_01.sce')

diff --git a/1529/CH18/EX18.1/18_01.sce b/1529/CH18/EX18.1/18_01.sce
new file mode 100755
index 000000000..9459885f4
--- /dev/null
+++ b/1529/CH18/EX18.1/18_01.sce
@@ -0,0 +1,17 @@
+//Chapter 18, Problem 1
+clc;
+v=120;                  //dc supply
+c=15e-6;                //capacitance in farad
+r=47e3;                 //resistance in ohms
+taw=r*c;                //time constant
+t1=taw;
+vcta= v*(1-%e^(-1*t1/taw));
+vct = v/2;
+t = 0:0.1:10
+vc = v*(1-%e^(-1*t/taw));
+plot(t,vc)
+xtitle("capacitor voltage/time characteristic", "t", "Vc")
+t = -1*taw*log(1 - vct/v);
+
+printf("\n (a)The capacitor voltage at a time equal to one time constant = %.2f V",vcta)
+printf("\n (b)The time for the capacitor voltage to reach one half of its steady state value = %.1f sec",t)
-- 
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