Question:
LIST I LIST II A. Bipolar npn transistor operate in the cut-off mode. I. The base-emitter is reverse biased and B. Bipolar npn transistor operate in the saturation mode. II. Both the base-emitter and base C. Bipolar npn transistor operate in the inverse active mode. III. The base-emitter is forward biased D. Bipolar npn transistor operate in the forward active mode. IV. Both the base-emitter and bas
Choose the correct answer from the options given below:
| LIST I | LIST II | ||
|---|---|---|---|
| A. | Bipolar npn transistor operate in the cut-off mode. | I. The base-emitter is reverse biased and | |
| B. | Bipolar npn transistor operate in the saturation mode. | II. Both the base-emitter and base | |
| C. | Bipolar npn transistor operate in the inverse active mode. | III. The base-emitter is forward biased | |
| D. | Bipolar npn transistor operate in the forward active mode. | IV. Both the base-emitter and bas |
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The operating mode of a BJT is determined by the biasing of the base-emitter and base-collector junctions.
Updated On: Feb 11, 2026
- (A) - (I), (B) - (II), (C) - (III), (D) - (IV)
- (A) - (II), (B) - (III), (C) - (IV), (D) - (I)
- (A) - (I), (B) - (II), (C) - (IV), (D) - (III)
- (A) - (II), (B) - (IV), (C) - (I), (D) - (III)
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The Correct Option is A
Solution and Explanation
In a bipolar junction transistor (BJT):
- Cut-off mode: Both junctions are reverse biased.
- Saturation mode: Both junctions are forward biased.
- Inverse active mode: The base-emitter junction is forward biased and the base-collector junction is reverse biased.
- Forward active mode: Both junctions are forward biased.
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