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Questions  

A silicon transistor amplifier circuit is given below. (β=100) . Find collector – emitter voltage

a
10V
b
9.3 V
c
5 V
d
15 V

detailed solution

Correct option is C

Applying Kirchhoff’s loop rule for base emitter circuit.5−IBR1−Vbarrier=0 ⇒IBR1=5−0.7        ⇒IB=4.38.6×103 = 0.5 mAAlso, current gain  β=ICIB     ⇒IC=βIB=50mAApplying Kirchhoff’s loop rule for collector-emitter circuitICR2−10+VCE=0       ⇒VCE=10−ICR2   =10−50×10−3×100= 5V

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