Physics - Semiconductors Question with Solution | TestHub

PhysicsSemiconductorsTransistorEasy2 minPYQ_2020

PhysicsEasysingle choice

In the following common emitter configuration a $N P N$ transistor with current gain $β = 100$ is used. The output voltage of the amplifier will be

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Answer:

Solution:

$V o l t a g e g a i n = \frac{O u t p u t v o l t a g e}{I n p u t v o l t a g e}$

$V_{o u t} = V_{i n} \times V o l t a g e g a i n$

$V_{o u t} = V_{i n} \times C u r r e n t g a i n \times R e s i s t a n c e g a i n$

$= V_{i n} \times β \times \frac{R_{o}}{R_{i}} = 1 0^{- 3} \times 100 \times \frac{10}{1} = 1 V$

Subject:PhysicsTopic:SemiconductorsSubtopic:Transistor

⏱ 2mℹ️ Source: PYQ_2020

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