Question

For circuit shown in figure I_E = 4 mA, I_B = 40 µA. What are the values of ex, and le respectively?

   

पर्याय

• 0.99, 3.96 mA

• 0.97, 4.04 mA

• 1.01, 3.96 mA

• 0.99, 4.04 mA

Answer 1

0.99, 3.96 mA

Explanation:

I_E = I_B + I_C ⇒ I_C = I_E - I_B

⇒ I_C = 4 - 0.04 = 3.96 mA

∴ α = `"I"_"C"/"I"_"E" = 3.96/4 = 0.99`