An N-P-N transistor conducts when: | vedclass

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

Question

(B) For an $N-P-N$ transistor to conduct (operate in the active region),the base-emitter junction must be forward-biased and the base-collector juncti

Vedclass · Accepted Answer

Collector is positive with respect to the base and emitter is negative with respect to the base.

Vedclass · Answer

(B) For an $N-P-N$ transistor to conduct (operate in the active region),the base-emitter junction must be forward-biased and the base-collector junction must be reverse-biased.$1$. Forward bias for the base-emitter junction: Since the base is $P$-type and the emitter is $N$-type,the base must be at a higher potential than the emitter (or the emitter must be negative with respect to the base).$2$. Reverse bias for the base-collector junction: Since the base is $P$-type and the collector is $N$-type,the collector must be at a higher potential than the base (or the collector must be positive with respect to the base).Therefore,the collector is positive with respect to the base,and the emitter is negative with respect to the base.

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

Similar Questions

For $I_b = 20 \ \mu A$ and $\beta = 100$,the value of the emitter current is ........ $mA$.

In common emitter configuration of a transistor amplifier, $r_i$, $R_L$ and $\beta$ represent the input resistance, load resistance, and the a.c. current gain, respectively. The voltage gain $A_V$ and power gain $A_P$ are represented in magnitude by which of the following expressions?

$A$ transistor having a $\beta$ equal to $80$ has a change in base current of $250 \mu A$. What is the change in collector current?

$A$ transistor works as an amplifier when

In the symbol of a transistor,the arrow indicates the direction of:

Vedclass Test Series

Exam Paper Generator

Online Exam Module