A- The emitter injects holes into the base region Which of the following is VALID for both P-N-P as well as N-P-N transistor LO: PH.2.16 B- The electrons are the minority carriers in the base region C. The emitter base junction is forward biased for active operation - When a biased in the active region, current flows into their emitter terminal
Question
A- The emitter injects holes into the base region Which of the following is VALID for both P-N-P as well as N-P-N transistor LO: PH.2.16 B- The electrons are the minority carriers in the base region C. The emitter base junction is forward biased for active operation
- When a biased in the active region, current flows into their emitter terminal
Solution
The valid statement for both P-N-P and N-P-N transistors is C. The emitter base junction is forward biased for active operation.
Here's why:
A. The emitter injects holes into the base region - This is only true for PNP transistors. In NPN transistors, the emitter injects electrons into the base region.
B. The electrons are the minority carriers in the base region - This is only true for PNP transistors. In NPN transistors, holes are the minority carriers in the base region.
C. The emitter base junction is forward biased for active operation - This is true for both PNP and NPN transistors. In both types, the emitter-base junction is forward biased, which allows current to flow from the emitter to the base.
D. When biased in the active region, current flows into their emitter terminal - This is only true for NPN transistors. In PNP transistors, when biased in the active region, current flows out of the emitter terminal.
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