An $N-P-N$ transistor conducts when:

  • A
    Both collector and emitter are positive with respect to the base.
  • B
    Collector is positive with respect to the base and emitter is negative with respect to the base.
  • C
    Collector is positive,and emitter and base are at the same potential.
  • D
    Both collector and emitter are negative with respect to the base.

Explore More

Similar Questions

Given below are two statements:
Statement $I:$ In a typical transistor,all three regions emitter,base and collector have same doping level.
Statement $II:$ In a transistor,collector is the thickest and base is the thinnest segment.
In the light of the above statements,choose the most appropriate answer from the options given below.

In an $n-p-n$ transistor,$200$ electrons enter the emitter in $10^{-8} \ s$. If $1 \%$ of electrons are lost in the base,then the current that enters the emitter and the current amplification factor are respectively $\left[e=1.6 \times 10^{-19} \ C\right]$

In an $n-p-n$ transistor, $95 \%$ of emitted electrons reach the collector. If the base current is $2 \text{ mA}$, then the collector current is (in $\text{ mA}$)

An $NPN$ transistor circuit is arranged as shown in the figure. It is:

In an $n-p-n$ transistor,in $CE$ configuration:

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo