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// Ex 27 Page 369
clc;clear;close;
// Given
Vcc=50;//V
Vmin=10;//V
Pd=40;//W
Vo=Vcc-Vmin;//V
K=Vo/Vcc;//constant
Rdash=2*Vcc**2/%pi/Pd*(K-%pi*K**2/4);//ohm
Po=K**2*Vcc**2/2/Rdash;//W
eta=%pi*K/4*100;//%
printf("load presented by transformer = %.1f ohm",Rdash)
printf("\n load power output = %.1f W",Po)
printf("\n conversion efficiency = %.1f percent",eta)
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