Question

The consequences of Early effect on BJT are:
(A) Effective base width reduces.
(B) Emitter injection efficiency and base transport factor increase.
(C) $\alpha$ and $\beta$ decrease.
(D) Emitter injection efficiency and base transport factor decrease.
Choose the correct answer:

• A. (A) and (B) only
• B. (A), (B) and (C) only
• C. (C) and (D) only
• D. (B), (C) and (D) only

Hint:

Early effect is base-width modulation, leading to $\beta$ reduction.

Answer 1

The Correct Option is B

- Base width reduces → Early effect.
- $\alpha, \beta$ reduce.
- Emitter injection efficiency may increase.
So correct: (A), (B), (C).
Final Answer: \[ \boxed{(2)} \]