Q. In a transistor circuit shown here the base current is $35\ \mu A$. The value of the resistor $R_{b}$ is
A) 123.5 $k\Omega$
B) $257\ k\Omega$
C) 380.05 $k\Omega$
D) None of these
Explanation
(b) $V_{b} - i_{b}R_{b} \Rightarrow R_{b} = \frac{9}{35 \times 10^{- 6}} = 257\ k\Omega$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.