initial commit / add all books

1 files changed, 17 insertions, 0 deletions

diff --git a/1850/CH8/EX8.17/exa_8_17.sce b/1850/CH8/EX8.17/exa_8_17.sce
new file mode 100755
index 000000000..525b063f7
--- /dev/null
+++ b/1850/CH8/EX8.17/exa_8_17.sce
@@ -0,0 +1,17 @@
+// Exa 8.17

+clc;

+clear;

+close;

+//given data

+C=0.1;// in  nF

+C=C*10^-9;//in F

+V=5;//in V

+t=1;// in micro S

+t=t*10^-6;// in sec

+// v= V*(1-%e^(-t/(R*C)))

+// Since hold value does not drop by more than 0.5% or by 0.005 V, hold value is 0.995 V, Thus

+// 0.995*V= V*(1-%e^(-t/(R*C)))

+// or %e^(-t/(R*C))= 1-0.995 = 0.005

+R= t/(C*log(1/0.005));// in ohm

+I= V/R*(1-%e^(-t/(R*C)));// Maximum currnet through R in amphere

+disp(I*10^3,"Maximum permissible leakage current through the hold capacitor in mA")