For a transistor,in a common emitter arrangem | vedclass

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

Question

(A) In a common emitter configuration,the alternating current gain $\beta$ (also known as the forward current gain) is defined as the ratio of the cha

Vedclass · Accepted Answer

$\beta = \left( \frac{\Delta I_C}{\Delta I_B} \right)_{V_{CE}}$

Vedclass · Answer

(A) In a common emitter configuration,the alternating current gain $\beta$ (also known as the forward current gain) is defined as the ratio of the change in collector current $\Delta I_C$ to the change in base current $\Delta I_B$,while keeping the collector-emitter voltage $V_{CE}$ constant.Mathematically,this is expressed as: $\beta = \left( \frac{\Delta I_C}{\Delta I_B} \right)_{V_{CE}}$.Since it is a ratio of two currents,$\beta$ is a dimensionless quantity. $A$ small change in the base current results in a significantly larger change in the collector current,which is the fundamental principle behind transistor amplification.

For a transistor,in a common emitter arrangement,the alternating current gain $\beta$ is given by

Similar Questions

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?

In the given circuit,a transistor with a current gain $\beta = 100$ is used. To have $V_{CE} = 5 \text{ V}$ and $V_{BE} = 0$,what should be the value of the base resistance $R_b$?

In a common emitter amplifier,the current gain is $62$. The collector resistance and input resistance are $5\,k\Omega$ and $500\,\Omega$ respectively. If the input voltage is $0.01\,V$,the output voltage is $..........\,V$.

Find the value of $I_B$ if $V_{BE} = 0.3\,V$ in the given circuit $(\beta = 100)$. (in $,\mu A$)

An $n-p-n$ transistor power amplifier in $C-E$ configuration gives

Vedclass Test Series

Exam Paper Generator

Online Exam Module