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Passage I An n-p-n transistor is used as a voltage amplifier in a commoin emitter circuit given V_(CC)=8V I_(C )=4mA V_(CE)=4V, (V_(BE)=0.6 V, V_(BB)=8V beta_(Dc)=200 The value of base resistanceis |
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Answer» 185 K `OMEGA` `I_(B) = (I_(c ))/( beta_(ac)) = (4mA)/( 200) =(4xx 10^(-3))/( 200)= 2XX 10^(-5) A` `rArrR_(B) = (V_(BB) - V_(BE))/( I_(B))= (8-0.6)/( 2 xx 10^(-5))= 3.7 xx 10^(5) Sigma ` |
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