Question

The early effect in a bipolar junction transistor is caused by

• A. Fast turn-on
• B. Large collector-base reverse bias
• C. Fast turn-off
• D. Large emitter-base forward bias

Hint:

The early effect is important in transistor operation, especially when dealing with high voltage at the collector.

Answer 1

The Correct Option is B

The early effect in a bipolar junction transistor (BJT) refers to the change in the current gain due to the variation in the base-collector voltage. When the collector-base reverse bias increases, the width of the base region decreases, which results in a reduction in current gain. This is called the early effect. Thus, the correct answer is option (2).