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-rwxr-xr-x2825/CH5/EX5.1/Ex5_1.sce12
-rwxr-xr-x2825/CH5/EX5.2/Ex5_2.sce15
-rwxr-xr-x2825/CH5/EX5.3/Ex5_3.sce19
3 files changed, 46 insertions, 0 deletions
diff --git a/2825/CH5/EX5.1/Ex5_1.sce b/2825/CH5/EX5.1/Ex5_1.sce
new file mode 100755
index 000000000..e6dbfe2c1
--- /dev/null
+++ b/2825/CH5/EX5.1/Ex5_1.sce
@@ -0,0 +1,12 @@
+//Ex5_1 Pg-278
+clc
+
+alpha_dc=0.97 //transistor current gain
+ICBO=10*10^(-6) //collector to base leakage current in A
+Ib=50*10^(-6) //base current in A
+
+Ic=((alpha_dc*Ib)/(1-alpha_dc))+(ICBO/(1-alpha_dc)) //collector current
+printf("Collector current = %.2f mA \n",Ic*10^3)
+
+Ie=Ic+Ib //emitter current
+printf(" Emitter current = %.0f mA",Ie*10^3)
diff --git a/2825/CH5/EX5.2/Ex5_2.sce b/2825/CH5/EX5.2/Ex5_2.sce
new file mode 100755
index 000000000..330f9ecf2
--- /dev/null
+++ b/2825/CH5/EX5.2/Ex5_2.sce
@@ -0,0 +1,15 @@
+//Ex5_2 Pg-279
+clc
+
+Ic=5.255*10^(-3) //collector current in A
+Ib=100*10^(-6) //base current in A
+ICBO=5*10^(-6) //collector to base leakage current in A
+
+alpha_dc=(Ic-ICBO)/(Ib+Ic) //common current gain factor
+printf("Common current gain factor alpha_dc = %.2f",alpha_dc)
+
+Beta=alpha_dc/(1-alpha_dc) //Dc emitter current gain factor value in text book is wrong
+printf("\n Dc emitter current gain factor beta = %.2f",Beta)
+
+Ie=Ic+Ib //emitter current value in text book wrong
+printf("\n Emitter current = %.3f mA",Ie*10^3)
diff --git a/2825/CH5/EX5.3/Ex5_3.sce b/2825/CH5/EX5.3/Ex5_3.sce
new file mode 100755
index 000000000..862b07c7a
--- /dev/null
+++ b/2825/CH5/EX5.3/Ex5_3.sce
@@ -0,0 +1,19 @@
+//Ex5_3 Pg-279
+clc
+
+Ic=12.427*10^(-3) //collector current in A
+Ib=200*10^(-6) //base current in A
+ICBO=7*10^(-6) //collector to base leakage current in A
+
+Beta=(Ic-ICBO)/(Ib+ICBO) //Dc emitter current gain factor (value in texbook is wrong)
+printf("\n Dc emitter current gain factor beta = %.0f",Beta)
+
+Ie=Ic+Ib //emitter current
+printf("\n Emitter current = %.1f mA",Ie*10^3)
+
+alpha_dc=(Ic-ICBO)/(Ib+Ic) //common current gain factor
+printf("\n Common current gain factor alpha_dc = %.2f",alpha_dc)
+
+Ib=150*10^(-6) //new base current
+Ic=Beta*Ib+(Beta+1)*ICBO //collector current (value in textbook is wrong)
+printf("\n Collector current = %.3f mA \n",Ic*10^3)