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diff --git a/2825/CH11/EX11.2/Ex11_2.sce b/2825/CH11/EX11.2/Ex11_2.sce
new file mode 100755
index 000000000..e1f754a9b
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+++ b/2825/CH11/EX11.2/Ex11_2.sce
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+//Ex11_2 Pg-551
+clc
+
+Po=4 //power in watts
+n=80/100 //transformer efficiency in percentage
+Vcc=30 //supply voltage
+
+Pout=Po/n //effective power 
+printf("Effective power to be transfered = %.0f W\n",Pout)
+
+disp("Impedance seen when ""looking into"" the whole winding of centertapped transformer ")
+Vp=Vcc //peak voltage
+Rload=Vp^2/(2*Pout) 
+Rload_4=4*Rload //effective load
+printf("\n Effective load = %.0f ohm \n",Rload_4)
+
+disp("Transformer specification Po=4W,RL=16ohm,RL""=360ohm")
+
+Vce=2*Vcc //Maximum transistor voltage
+printf("\n Maximum transistor voltage = %.0f V\n",Vce)
+
+Ip=2*Pout/Vp //Maximum transistor current
+Ic=Ip
+printf("\n Maximum transistor current = %.0f mA \n",Ip*1e3)
+// answer in the book is different due to approximate value
+printf("\n Transformer specification Vce=60V,Ic=%.0f mA",Ic*1e3)
+// answer in the book is different  due to approximate value