In a common base circuit, the current gain is `0.96`. If the base current is `60 mu A`, find the emitter current and collector current.
Text Solution
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`alpha_(dc)=I_c/I_(e)=((I_(e)-I_b))/(I_(e))` `:. I_b=I_(e)-alpha_(dc) I_(e)=(1-alpha_(dc))I_(e) or I_(e)=(I_b)/(1-alpha_(dc))=(60)/(1-0.96)=60/0.04=1500muA=1.5mA` `I_(c)=I_(e)-I_(b)=1500-60=1440muA=1.44mA`
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