Question

In a transistor circuit shown here the base current is 35 μA. The value of the resistor R_b is.

• A. 123.5 kΩ
• B. 257 kΩ
• C. 380.05 kΩ
• D. None of these

Answer 1

Answer: (B)

257 kΩ

Answer 2

$V_{b} = i_{b}R_{b} \Rightarrow R_{b} = \frac{9}{35 \times 10^{- 6}}$=257 kΩ.