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+//scilab 5.4.1
+//Windows 7 operating system
+//chapter 9 Basic Voltage and Power Amplifiers
+clc
+clear
+//In a class B push pull circuit
+//Transformer winding resistances are to be ignored
+n=3//n=primary-to-secondary turns ratio of a transformer
+RL=9//RL=load resistance in ohms
+VCC=15//VCC=collector supply voltage
+RL1=((n/2)^2)*RL//RL1=reflected load resistance for one transistor
+Pactot=(VCC^2)/(2*RL1)//Pactot=maximum output power
+format("v",5)
+disp("W",Pactot,"The maximum output power is =")
+Pstot=(2*VCC^2)/(%pi*RL1)//Pstot=the maximum dc power supplied to the two transistors
+format("v",5)
+disp("W",Pstot,"The maximum dc power supplied is =")
+n=(Pactot/Pstot)*100//n=efficiency
+format("v",5)
+disp("%",n,"The efficiency is =")