First slide

Transistors

Question

The correct relation between the two current gains α and β in a transistor is

Easy

A

$β = \frac{α}{1 + α}$
B

$α = \frac{β}{1 - β}$
C

$α = \frac{β}{1 + β}$
D

$α = \frac{1 + β}{β}$

Solution

$\begin{array}{l} I_{e} = I_{b} + I_{c} \\ \Rightarrow \frac{I_{e}}{I_{c}} = \frac{I_{b}}{I_{c}} + 1 \\ \Rightarrow \frac{1}{α} = \frac{1}{β} + 1 \\ \Rightarrow α = \frac{β}{1 + β} \end{array}$

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App