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

---
 2078/CH3/EX3.5/Example3_5.sce | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100755 2078/CH3/EX3.5/Example3_5.sce

(limited to '2078/CH3/EX3.5/Example3_5.sce')

diff --git a/2078/CH3/EX3.5/Example3_5.sce b/2078/CH3/EX3.5/Example3_5.sce
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+++ b/2078/CH3/EX3.5/Example3_5.sce
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+//Exa 3.5
+clc;
+clear;
+close;
+//Given data :
+a=poly(0,'a');//cross section area
+I=poly(0,'I');//Current
+Cc=500+2000*a//Rs/km
+i=12;//%(interest and depreciation)
+E_lost_cost=5/100;//Rs/kWh
+rho=1.78*10^-8;//ohm-cm
+load_factor=0.12;
+Cc_var=2000*a//Rs/km(variable cost)
+P2a=Cc_var*i/100;//Rs/km
+P2=P2a/a;
+R_into_a=rho*1000/(10^-4);//ohm
+W_into_a=I^2*R_into_a;//W
+E_loss_into_a=W_into_a*load_factor/1000*8760;//kWh
+P3BYIsqr=E_lost_cost*E_loss_into_a/I^2;//Rs
+//P2a=P3BYa;//For most economical cross section
+IBYa=sqrt(coeff((numer(P2))/coeff(numer(P3BYIsqr))));//cm^2
+disp(IBYa,"Most economical current density in A/cm^2 : ");
-- 
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