An n-p-n transistor is biased to work as an a | vedclass

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

Question

(D) In an $n-p-n$ transistor,the emitter is $n$-type,the base is $p$-type,and the collector is $n$-type.$1$. Electrons are the majority charge carrier

Vedclass · Accepted Answer

The electrons go from collector region to base region.

Vedclass · Answer

(D) In an $n-p-n$ transistor,the emitter is $n$-type,the base is $p$-type,and the collector is $n$-type.$1$. Electrons are the majority charge carriers in the emitter and they move from the emitter to the base.$2$. In the base,electrons recombine with holes,but since the base is very thin and lightly doped,most electrons cross into the collector region.$3$. The collector is reverse-biased,which attracts the electrons coming from the base.$4$. Holes are the majority charge carriers in the base,but they do not move from the base to the collector in significant numbers to constitute the main current; rather,the collector current is primarily due to the flow of electrons from the emitter through the base to the collector.$5$. Statement $D$ is incorrect because electrons move from the emitter to the collector,not from the collector to the base.

An $n-p-n$ transistor is biased to work as an amplifier. Which of the following statements is $NOT$ correct?

Similar Questions

In an $NPN$ transistor,the collector current is $10\, mA$. If $90\%$ of the electrons emitted reach the collector,then:

For a common emitter configuration,if $\alpha$ and $\beta$ have their usual meanings,the incorrect relationship between $\alpha$ and $\beta$ is:

In an $n-p-n$ transistor circuit,the collector current is $20 \, mA$. If $90 \%$ of the emitted electrons reach the collector,calculate the emitter current and base current.

In the circuit shown in the figure,the input voltage $V_i$ is $20\, V$,$V_{BE} = 0$,and $V_{CE} = 0$. The values of $I_B$,$I_C$,and $\beta$ are given by:

Vedclass Test Series

Exam Paper Generator

Online Exam Module