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diff --git a/2045/CH6/EX6.1/Ex6_1.pdf b/2045/CH6/EX6.1/Ex6_1.pdf
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index 000000000..16ea6e3c4
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+++ b/2045/CH6/EX6.1/Ex6_1.pdf
diff --git a/2045/CH6/EX6.1/Ex6_1.sce b/2045/CH6/EX6.1/Ex6_1.sce
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index 000000000..a5c81b9c5
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+//pagenumber 337 example 1
+clear
+colcur=10*10^-3;//ampere
+vce=10;//volt
+hie=500;//ohm
+hoe=4*10^-5;
+hfe=100;
+hre=1*10^-4;
+fqu=50*10^6;//hertz
+q=3*10^12;//farad
+voltag=26*10^-3;//volt
+g=colcur/voltag;
+gbe=g/hfe;
+gbc=gbe*hre;
+rbb=hie-260;
+oucond=hoe-(1+hfe)*gbc;
+cbe=g/(2*3.14*fqu);
+rbc=1/gbc;
+rce=1/oucond;
+disp("transconductance g   =   "+string((g))+"ampere/volt");
+disp("input conductance gbe   =   "+string((gbe))+"ampere/volt");
+disp("feedback conductance gbc   =   "+string((gbc))+"ampere/volt");
+disp("base spread resistance rbb   =   "+string((rbb))+"ohm");
+disp("output conductance   =   "+string((oucond))+"ampere/volt");
+disp("transition capacitance cbe   =   "+string((cbe))+"farad");
+disp("rbc    =   "+string((rbc))+"ohm");//correction as 2.6mega ohm
+disp("rce   =   "+string((rce))+"ohm");
+
+
diff --git a/2045/CH6/EX6.2/Ex6_2.pdf b/2045/CH6/EX6.2/Ex6_2.pdf
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index 000000000..effee1800
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+++ b/2045/CH6/EX6.2/Ex6_2.pdf
diff --git a/2045/CH6/EX6.2/Ex6_2.sce b/2045/CH6/EX6.2/Ex6_2.sce
new file mode 100755
index 000000000..04b972cf4
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+++ b/2045/CH6/EX6.2/Ex6_2.sce
@@ -0,0 +1,23 @@
+//pagenumber 337 example 2
+clear
+colcur=5*10^-3;//ampere
+vce=10;//volt
+hfe=100;
+hie=600;//ohm
+cugain=10;
+fqu=10*10^6;//hertz
+
+tracat=3*10^-12;//farad
+voltag=26*10^-3;//volt
+fbeta1=((((hfe^2)/(cugain^2))-1)/fqu^2)^(1/2);
+fbeta1=1/fbeta1;
+fq1=hfe*fbeta1;
+cbe=colcur/(2*3.14*fq1*voltag);
+rbe=hfe/(colcur/voltag);
+rbb=hie-rbe;
+disp("fbeta   =   "+string((fbeta1))+"hertz");
+disp("f   =   "+string((fq1))+"hertz");
+disp("cbe   =   "+string((cbe))+"farad");
+disp("rbe   =   "+string((rbe))+"ohm");
+disp("rbb   =   "+string((rbb))+"ohm");
+
diff --git a/2045/CH6/EX6.3/Ex6_3.pdf b/2045/CH6/EX6.3/Ex6_3.pdf
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index 000000000..5e6ecdc8b
--- /dev/null
+++ b/2045/CH6/EX6.3/Ex6_3.pdf
diff --git a/2045/CH6/EX6.3/Ex6_3.sce b/2045/CH6/EX6.3/Ex6_3.sce
new file mode 100755
index 000000000..4b63bdd95
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+//pagenumber 338 example 3
+clear
+w=1*10^-4;//centimetre
+em1cur=2*10^-3;//ampere
+q=47;
+voltag=26*10^-3;//volt
+cde=(em1cur*w^2)/(voltag*2*q);
+fq1=(em1cur)/(2*3.14*cde*voltag);
+disp("cde   =   "+string((cde))+"farad");
+disp("frequency   =   "+string((fq1))+"hertz");
+
diff --git a/2045/CH6/EX6.6/Ex6_6.pdf b/2045/CH6/EX6.6/Ex6_6.pdf
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index 000000000..8d7719b00
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+++ b/2045/CH6/EX6.6/Ex6_6.pdf
diff --git a/2045/CH6/EX6.6/Ex6_6.sce b/2045/CH6/EX6.6/Ex6_6.sce
new file mode 100755
index 000000000..20c94e503
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+++ b/2045/CH6/EX6.6/Ex6_6.sce
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+//pagenumber 339 example 6
+clear
+w=5*10^-4;//centimetre
+em1cur=2*10^-3;//ampere
+q=47;
+voltag=26*10^-3;//volt
+re=voltag/em1cur;
+fq1=2*q/(w^2*2*3.14);
+cde=(em1cur*w^2)/(voltag*2*q);
+w=(w^2)/(2*q);
+disp("re   =   "+string((re))+"ohm");
+disp("falpha   =   "+string((fq1))+"hertz");
+disp("cde   =   "+string((cde))+"farad");
+
+
+disp("w   =   "+string((w))+"second");
+
+
+
diff --git a/2045/CH6/EX6.8/Ex6_8.pdf b/2045/CH6/EX6.8/Ex6_8.pdf
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index 000000000..f891a0945
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+++ b/2045/CH6/EX6.8/Ex6_8.pdf
diff --git a/2045/CH6/EX6.8/Ex6_8.sce b/2045/CH6/EX6.8/Ex6_8.sce
new file mode 100755
index 000000000..96c358412
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+++ b/2045/CH6/EX6.8/Ex6_8.sce
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+//pagenumber example 8
+clear
+w=10^-6;//centimetre
+em1cur=4*10^-3;//ampere
+voltag=26*10^-3;//volt
+q=47;
+cde=(em1cur*w^2)/(voltag*2*q);
+fq1=(em1cur)/(2*3.14*cde*voltag);
+disp("f   =   "+string((fq1))+"hertz");
+disp("cde   =   "+string((cde))+"farad");//correction in book 0.0016pico farad
+