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  4. A n-p-n transistor is connected in common emitter configuration (see figure) in which collector voltage drop across load resistance (800 Ω ) connected to the collector circuit is 0.8 V. The collector current is: <img class=img-fluid question-image alt=image src=https://cdn.tardigrade.in/img/question/physics/5f7b3365c48ded7a0f3956dc26b29478-.png />

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Q. A n-p-n transistor is connected in common emitter configuration (see figure) in which collector voltage drop across load resistance $(800\,\Omega )$ connected to the collector circuit is $0.8\, V$. The collector current is :
image

NEETNEET 2020Semiconductor Electronics: Materials Devices and Simple Circuits

Solution:

Voltage drop across load resistance $= 0.8\, V$
$I_{C}=\frac{V_{c}}{R_{c}}=\frac{0.8}{800}$
$=10^{-3}A$
$=1\,mA$