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Question 11. For the transistor circuit shown in figure, evaluate V E ,   R B ,   R E . Given I C = 1   m A ,   V C E = 3   V ,   V B E = 0 . 5   V   a n d   V C C = 12   V ,   β = 100 .

Ic=1 mAIB=1mA100=0.01mA=10 μA.IE'=1+0.01 =1.01 mAVC=12-1*10-3*7.8*103=12-7.8=4.2 volt.VE=4.2-3=1.2 volt.RE=VEIE=1.21.01*10-3=1.188 K-ohmVB=1.2+0.5=1.7 volt.IRB=1.720 mA+0.01=0.095 mARB=12-1.70.095   K-ohm=108.42 K-ohmRegards

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