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+// Find id,Vds,slope of operation of JFET

+// Basic Electronics

+// By Debashis De

+// First Edition, 2010

+// Dorling Kindersley Pvt. Ltd. India

+// Example 6-4 in page 275

+

+clear; clc; close;

+

+// Given data

+Ids=12*10^-3; // Drain current in mA

+Vp=-4; // Peak voltage in V

+Rd=1*10^3; // Drain resistance in k-ohm

+Vdd=15; // Drain voltage in V

+

+// Calculation

+Id=Ids;

+Vds=(-Rd*Id)+Vdd;

+printf("Id = %0.2e A\n",Id);

+printf("Vds = %0.0f V\n",Vds);

+printf("Consider it to be operating in the ohmic region\n");

+Vds1=(7+sqrt(49-45))/(3/2);

+Vds2=(7-sqrt(49-45))/(3/2);

+printf("Then Vds = %0.2f V,%0.2f V\n",Vds1,Vds2);

+printf("6V is neglected since it is lesser than -Vp\n");

+id=(15-Vds2)/(1*10^3);

+Vds=Vds2;

+printf("(a)Id = %0.3e A\n",id);

+printf("(b)Vds = %0.2f V",Vds);

+printf("Since Vds<Vgs-Vp,operation region is confirmed in the ohmic region");

+

+// Result

+// (a) Id = 11.67 mA

+// (b) Vds = 3.33 V

+// (c) Operation region is in the ohmic region
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diff --git a/181/CH6/EX6.4/example6_4.txt b/181/CH6/EX6.4/example6_4.txt
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+Id = 1.20e-002 A

+Vds = 3 V

+Consider it to be operating in the ohmic region

+Then Vds = 6.00 V,3.33 V

+6V is neglected since it is lesser than -Vp

+(a)Id = 1.167e-002 A

+(b)Vds = 3.33 VSince Vds<Vgs-Vp,operation region is confirmed in the ohmic region 
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