Physics - Semiconductors Question with Solution | TestHub

PhysicsSemiconductorsTransistorEasy2 minPYQ_2020
PhysicsEasysingle choice

In an NPN transistor circuit, the collector current is 10  mA. If 90% of the emitted electrons reach the collector, the emitter currentIEand base currentIBare given by

Options:

Answer:
D
Solution:

We know that

IC=90100×IE⇒10=0.9×IE

∴IE=100.9=11 mA

AlsoIE=IB+IC⇒IB=11-10=1 mA.

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:SemiconductorsSubtopic:Transistor
⏱ 2mℹ️ Source: PYQ_2020

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