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//Book Name:Fundamentals of Electrical Engineering
//Author:Rajendra Prasad
//Publisher: PHI Learning Private Limited
//Edition:Third ,2014
//Ex4_28.sce.
clc;
clear;
t1=1.5; //Insulation thickness of conductor in cm
d_c=1.5; //Diameter of conductor in cm
a1=d_c/2;
b1=a1+t1;
R1=500; //Insulation resistance in megaohm for a given thickness
R2=700; //Insulation resistance in megaohm for a unknown thickness
//R=(p/(2*%pi*l))*log(b/a) R1=(p/(2*%pi*l))*log(b1/a1) R2=(p/(2*%pi*l))*log(b2/a2)
a2=d_c/2;
b2=a2; //b2 is the sum of a2 and unknown thickness
t2=a2*(b1/a1)^(R2/R1)-b2; //thickness of 700 megaohm resistance insulation in cm
printf("\n Insulation thickness of the cable if insulation resistance is 700 megaohm=%1.3f cm",t2)
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