engineering physics MCQ #1837

The input resistance of a silicon transistor is 1 kΩ. If the base current changes by 10 μA, the collector current changes by 1 mA. The current gain is

engineering physics MCQ #1837

  1. Question 1

    Q1. The input resistance of a silicon transistor is 1 kΩ. If the base current changes by 10 μA, the collector current changes by 1 mA. The current gain is

    • A) 50
    • B) 100
    • C) 150
    • D) 200

    Answer: 100

    Explanation: Using the formula β = ΔI_c / ΔI_b, we get β = 1 mA / 10 μA = 100.