Question 236: Semiconductors and Logic Gates

Question

The output characteristics of a transistor is shown in the figure. When VCE is 10V and IC
 = 4.0 mA,
then value of $$\beta $$ac
 is __________.

Accepted Answer

We know, $$\beta $$
ac
= $${{\Delta {I_C}} \over {\Delta {I_B}}}$$
$$\Delta $$I
B
= (30 - 20) = 10 $$\mu $$A
$$\Delta $$I
C
= (4.5 - 3) = 1.5 mA
$$ 	herefore $$ $$\beta $$
ac
= $${{1.5 	imes {{10}^{ - 3}}} \over {10 	imes {{10}^{ - 6}}}}$$ = 150

Semiconductors and Logic Gates

The output characteristics of a transistor is shown in the figure. When VCE is 10V and IC = 4.0 mA, then value of $\beta $ac is __________.

Choose the correct answer: