1 files changed, 23 insertions, 0 deletions
diff --git a/3754/CH25/EX25.12/25_12.sce b/3754/CH25/EX25.12/25_12.sce
new file mode 100644
index 000000000..117e6db5b
--- /dev/null
+++ b/3754/CH25/EX25.12/25_12.sce
@@ -0,0 +1,23 @@
+clear//
+
+//Variables
+
+hie = 1100.0                          //hie (in ohm)
+hre = 2.5 * 10**-4                    //hre
+hfe = 50.0                            //Current gain
+hoe = 24.0 * 10**-6                   //hoe (in Ampere per volt)
+rL=10.0*10**3;RL=10.0*10**3;
+RS = 1.0 * 10**3                      //Source resistance (in ohm)
+
+//Calculation
+
+hic = hie                             //hic (in ohm)
+hrc = (1 - hre)                       //hrc
+hfc = -(1 + hfe)                      //hfc
+Ai = -(hfc/(1 + hoe * rL))            //Current gain
+Ri = hic + hrc * Ai * rL              //Input resistance (in ohm)
+Av = Ai * rL / Ri                     //Voltage gain
+
+//Result
+
+printf("\n Current gain is  %0.1f .\nInput resistance is  %0.1f  kilo-ohm.\nVoltage gain is  %0.3f .",Ai,Ri*10**-3,Av)