AExE01 · Chapter 1Basic Electrical & Electronics🏛️ Past Licensure QuestionID: b813f997
In a BJT, when the collector-base junction is reverse-biased and the base-emitter junction is forward-biased, the transistor operates in the:
In a BJT, when the collector-base junction is reverse-biased and the base-emitter junction is forward-biased, the transistor operates in the:
Multiple Choice Options
- A
Saturation region
- B✓ Correct Option
Active region
- C
Cutoff region
- D
Reverse active region
Detailed Technical Solution & Explanation
In a bipolar junction transistor, the operating modes are defined by junction biasing: Forward-biased base-emitter (BE) and reverse-biased collector-base (CB) places the transistor in the Active Region, where it functions as a linear current amplifier.
Option Analysis:
•
Option A (Saturation region): Incorrect. Both BE and CB junctions must be forward-biased.
•
Option B (Active region): Correct. BE forward-biased and CB reverse-biased defines active region.
•
Option C (Cutoff region): Incorrect. Both BE and CB junctions must be reverse-biased.
•
Option D (Reverse active region): Incorrect. BE reverse-biased and CB forward-biased.
Reference: Demo · Set 4NEC Licensure Syllabus