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//chapter 3
//example 3.4
//page 78
//find hfc,hib,alpha for common emitter configuration
clear;
clc ;
//given
hfe=60; //forward current transfer ratio for common emitter configuration
hie=1250; //input resistance for common emitter configuration
hfc= -(1+hfe); //forward current transfer ratio for common collector configuration
hib =hie/(1+hfe); //input resistance for common base configuration
alpha=hfe/(1+hfe); // current gain factor
printf('\nalpha=%.3f\nhib=%.1f ohm\nhfc=%d',alpha,hib,hfc);
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