Answer to Question #144091 in Electric Circuits for lana

Question

What will happen to the value of IC if IB is increased?
A) Increases
B) Decreases
C) Remains

Answer 1

As we know that,

In Bipolar Junction transistor($BJT$ ),

Current gain $\beta=\dfrac{I_c}{I_b}$

$\Rightarrow I_c=\beta I_b$

$\Rightarrow I_c\propto I_b$

Now for increase in $I_b$ The collector current $I_c$ Increses. Since ($I_c\propto I_b$)

Hence $I_c$ increases.