In the case of constants alpha and beta of a | vedclass

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

Question

(D) For a transistor,$\alpha$ (common-base current gain) is defined as the ratio of collector current $(I_C)$ to emitter current $(I_E)$,i.e.,$\alpha

Vedclass · Accepted Answer

$\beta > 1, \alpha < 1$

Vedclass · Answer

(D) For a transistor,$\alpha$ (common-base current gain) is defined as the ratio of collector current $(I_C)$ to emitter current $(I_E)$,i.e.,$\alpha = \frac{I_C}{I_E}$. Since $I_E = I_C + I_B$,it follows that $I_C $\beta$ (common-emitter current gain) is defined as the ratio of collector current $(I_C)$ to base current $(I_B)$,i.e.,$\beta = \frac{I_C}{I_B}$. Since the base current $I_B$ is very small compared to the collector current $I_C$,$\beta$ is typically much greater than $1$.Therefore,the correct relationship is $\alpha  1$.

In the case of constants $\alpha$ and $\beta$ of a transistor:

Similar Questions

In a transistor circuit,the collector current is changed by $8.9 \ mA$,if the emitter current is changed by $9.0 \ mA$. The value of current amplification factor,$\beta$ is

$A$ transistor oscillator is a device that is used to:

In a common emitter amplifier configuration, the current gain is $62$. The collector resistance and input resistance are $5 \text{ k}\Omega$ and $500 \text{ }\Omega$ respectively. If the input voltage is $0.01 \text{ V}$, the output voltage will be (in $V$)

The output characteristics of a transistor in common emitter $(CE)$ mode is the graph obtained by plotting

The relation between $\alpha$ and $\beta$ parameters of current gains for a transistor is given by:

Vedclass Test Series

Exam Paper Generator

Online Exam Module