Q. A transistor has $\beta = 40$. A charge in base current of $100\ \mu A$, produces change in collector current
A) $40 \times 100\ \mu A$
B) $(100 - 40)\mu A$
C) $100 + 40\ \mu A$
D) $100 \times /40\ \mu A$
Explanation
(a) We know that
$\beta = \frac{\mathrm{\Delta}I_{c}}{\mathrm{\Delta}I_{b}}\ or\ \ \mathrm{\Delta}I_{c}\mathrm{\Delta}\beta\mathrm{\Delta}I_{b} = 40 \times 100\mu A$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.