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In a transistor, the emitter-base junction and the collector-base junction are
- a)forward and forward respectively
- b)reverse and reverse respectively
- c)reverse and forward respectively
- d)forward and reverse respectively
Correct answer is option 'D'. Can you explain this answer?
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In a transistor, the emitter-base junction and the collector-base junc...
Transistor and its Junctions:
A transistor is a three-layer, two PN junction semiconductor device. It is used in electronic circuits as an amplifier or switch. The two PN junctions in a transistor are called emitter-base junction and collector-base junction.
- Emitter-Base Junction: It is forward biased, which means the P-type region of the emitter is connected to the positive terminal of the battery and the N-type region of the base is connected to the negative terminal of the battery.
- Collector-Base Junction: It is reverse biased, which means the P-type region of the collector is connected to the negative terminal of the battery and the N-type region of the base is connected to the positive terminal of the battery.
Options Analysis:
a) Forward and Forward: If both junctions were forward biased, the transistor would be shorted, and it would not function as an amplifier or switch.
b) Reverse and Reverse: If both junctions were reverse biased, the transistor would not conduct, and it would not function as an amplifier or switch.
c) Reverse and Forward: If the emitter-base junction were reverse biased and the collector-base junction were forward biased, the transistor would not conduct, and it would not function as an amplifier or switch.
d) Forward and Reverse: This is the correct answer. The emitter-base junction is forward biased, and the collector-base junction is reverse biased. This configuration allows the transistor to function as an amplifier or switch.
Conclusion:
Therefore, the correct answer is option D, forward and reverse respectively, for a transistor's emitter-base junction and collector-base junction.
A transistor is a three-layer, two PN junction semiconductor device. It is used in electronic circuits as an amplifier or switch. The two PN junctions in a transistor are called emitter-base junction and collector-base junction.
- Emitter-Base Junction: It is forward biased, which means the P-type region of the emitter is connected to the positive terminal of the battery and the N-type region of the base is connected to the negative terminal of the battery.
- Collector-Base Junction: It is reverse biased, which means the P-type region of the collector is connected to the negative terminal of the battery and the N-type region of the base is connected to the positive terminal of the battery.
Options Analysis:
a) Forward and Forward: If both junctions were forward biased, the transistor would be shorted, and it would not function as an amplifier or switch.
b) Reverse and Reverse: If both junctions were reverse biased, the transistor would not conduct, and it would not function as an amplifier or switch.
c) Reverse and Forward: If the emitter-base junction were reverse biased and the collector-base junction were forward biased, the transistor would not conduct, and it would not function as an amplifier or switch.
d) Forward and Reverse: This is the correct answer. The emitter-base junction is forward biased, and the collector-base junction is reverse biased. This configuration allows the transistor to function as an amplifier or switch.
Conclusion:
Therefore, the correct answer is option D, forward and reverse respectively, for a transistor's emitter-base junction and collector-base junction.
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In a transistor, the emitter-base junction and the collector-base junction area) forward and forward respectively b) reverse and reverse respectively c) reverse and forward respectively d) forward and reverse respectively Correct answer is option 'D'. Can you explain this answer?
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