When n-p-n transistor is used as an amplifier | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) In an $n-p-n$ transistor,the emitter is $n$-type,the base is $p$-type,and the collector is $n$-type.When used as an amplifier,the base-emitter jun

Vedclass · Accepted Answer

electrons move from base to collector

Vedclass · Answer

(A) In an $n-p-n$ transistor,the emitter is $n$-type,the base is $p$-type,and the collector is $n$-type.When used as an amplifier,the base-emitter junction is forward-biased and the collector-base junction is reverse-biased.Due to the forward bias,electrons are injected from the emitter into the base.Because the base is very thin and lightly doped,most of these electrons diffuse through the base into the collector region.The collector is kept at a positive potential relative to the base to attract these electrons.Therefore,electrons move from the base to the collector.

When $n-p-n$ transistor is used as an amplifier:

Similar Questions

Growth in living organisms occurs by

The energy $(E)$,angular momentum $(L)$,and universal gravitational constant $(G)$ are chosen as fundamental quantities. The dimensions of the universal gravitational constant in the dimensional formula of Planck's constant $(h)$ is

How many types of lichens are there based on their external morphology (growth form)?

The correct order of decreasing third ionisation enthalpy of $Ti, V, Cr, Mn$ is

The electrode potentials for $Cu^{2+}_{(aq)} + e^- \to Cu^{+}_{(aq)}$ and $Cu^{+}_{(aq)} + e^- \to Cu_{(s)}$ are $+0.15 \ V$ and $+0.50 \ V$ respectively. The value of $E^\circ$ for the reaction $Cu^{2+}_{(aq)} + 2e^- \to Cu_{(s)}$ will be ............ $V$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module