Physics - Semiconductors Question with Solution | TestHub

PhysicsSemiconductorsTransistorEasy2 minPYQ_2020
PhysicsEasysingle choice

An N-P-N transistor is being used in CE mode for which the current transfer ratio is,α=2526. The input resistance is1000 Ωand amplitude of A.C. input voltage is10 mV. The amplitude of the amplified output collector current is

Options:

Answer:
B
Solution:

β=α1-α

or 25261-2526=β=25

and Input current Ib=ViRi=10 mV1000 Ω=10 μA

we know, β=IcIb=25

 Output current Ic=25Ib=250 μA

Subject:PhysicsTopic:SemiconductorsSubtopic:Transistor
2mℹ️ Source: PYQ_2020

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