| 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 |
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.
Match Fibre with Application.\[\begin{array}{|l|l|} \hline \textbf{LIST I} & \textbf{LIST II} \\ \textbf{Fibre} & \textbf{Application} \\ \hline \hline \text{A. Silk fibre} & \text{I. Fire retardant} \\ \hline \text{B. Wool fibre} & \text{II. Directional lustre} \\ \hline \text{C. Nomex fibre} & \text{III. Bulletproof} \\ \hline \text{D. Kevlar fibre} & \text{IV. Thermal insulation} \\ \hline \end{array}\]