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An n-p-n transistor conducts when [2003]
- a)both collector and emitter are negative withrespect to the base
- b)both collector and emitter are positive withrespect to the base
- c)collector is positive and emitter is negativewith respect to the base
- d)collector is positive and emitter is at samepotential as the base
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
An n-p-n transistor conducts when [2003]a)both collector and emitter a...
When the collector is positive and emitter is
negative w.r.t. base, it causes the forward
biasing for each junction, which causes
conduction of current.
negative w.r.t. base, it causes the forward
biasing for each junction, which causes
conduction of current.
Most Upvoted Answer
An n-p-n transistor conducts when [2003]a)both collector and emitter a...
Understanding N-P-N Transistor Operation
An n-p-n transistor is a type of bipolar junction transistor that consists of two n-type semiconductors (the collector and emitter) separated by a thin layer of p-type semiconductor (the base). For the transistor to conduct, certain conditions must be met regarding the voltages applied to its terminals.
Conducting State Requirements
- The emitter (E) must be at a lower potential than the base (B). This is necessary to allow electrons to flow from the emitter into the base.
- The collector (C) must be at a higher potential than the base. This allows for the collection of electrons that are injected into the base from the emitter.
Explanation of Option C
- In option C, the condition states that the collector is positive and the emitter is negative with respect to the base. This configuration creates the necessary electric field for conduction:
- Collector Positive: This creates a high potential that attracts electrons from the base, enabling the flow of current from collector to emitter.
- Emitter Negative: This allows electrons to flow from the emitter into the base, providing the majority carriers needed for conduction.
Why Other Options Are Incorrect
- Option A: Both negative means no forward bias at the emitter-base junction.
- Option B: Both positive fails to establish the required potential difference for current flow.
- Option D: Having the emitter at the same potential as the base prevents electron injection, thus halting conduction.
In conclusion, for an n-p-n transistor to conduct, the correct configuration is that the collector must be positive and the emitter must be negative with respect to the base, validating option C.
An n-p-n transistor is a type of bipolar junction transistor that consists of two n-type semiconductors (the collector and emitter) separated by a thin layer of p-type semiconductor (the base). For the transistor to conduct, certain conditions must be met regarding the voltages applied to its terminals.
Conducting State Requirements
- The emitter (E) must be at a lower potential than the base (B). This is necessary to allow electrons to flow from the emitter into the base.
- The collector (C) must be at a higher potential than the base. This allows for the collection of electrons that are injected into the base from the emitter.
Explanation of Option C
- In option C, the condition states that the collector is positive and the emitter is negative with respect to the base. This configuration creates the necessary electric field for conduction:
- Collector Positive: This creates a high potential that attracts electrons from the base, enabling the flow of current from collector to emitter.
- Emitter Negative: This allows electrons to flow from the emitter into the base, providing the majority carriers needed for conduction.
Why Other Options Are Incorrect
- Option A: Both negative means no forward bias at the emitter-base junction.
- Option B: Both positive fails to establish the required potential difference for current flow.
- Option D: Having the emitter at the same potential as the base prevents electron injection, thus halting conduction.
In conclusion, for an n-p-n transistor to conduct, the correct configuration is that the collector must be positive and the emitter must be negative with respect to the base, validating option C.
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An n-p-n transistor conducts when [2003]a)both collector and emitter are negative withrespect to the baseb)both collector and emitter are positive withrespect to the basec)collector is positive and emitter is negativewith respect to the based)collector is positive and emitter is at samepotential as the baseCorrect answer is option 'C'. Can you explain this answer?
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An n-p-n transistor conducts when [2003]a)both collector and emitter are negative withrespect to the baseb)both collector and emitter are positive withrespect to the basec)collector is positive and emitter is negativewith respect to the based)collector is positive and emitter is at samepotential as the baseCorrect answer is option 'C'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about An n-p-n transistor conducts when [2003]a)both collector and emitter are negative withrespect to the baseb)both collector and emitter are positive withrespect to the basec)collector is positive and emitter is negativewith respect to the based)collector is positive and emitter is at samepotential as the baseCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An n-p-n transistor conducts when [2003]a)both collector and emitter are negative withrespect to the baseb)both collector and emitter are positive withrespect to the basec)collector is positive and emitter is negativewith respect to the based)collector is positive and emitter is at samepotential as the baseCorrect answer is option 'C'. Can you explain this answer?.
An n-p-n transistor conducts when [2003]a)both collector and emitter are negative withrespect to the baseb)both collector and emitter are positive withrespect to the basec)collector is positive and emitter is negativewith respect to the based)collector is positive and emitter is at samepotential as the baseCorrect answer is option 'C'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about An n-p-n transistor conducts when [2003]a)both collector and emitter are negative withrespect to the baseb)both collector and emitter are positive withrespect to the basec)collector is positive and emitter is negativewith respect to the based)collector is positive and emitter is at samepotential as the baseCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An n-p-n transistor conducts when [2003]a)both collector and emitter are negative withrespect to the baseb)both collector and emitter are positive withrespect to the basec)collector is positive and emitter is negativewith respect to the based)collector is positive and emitter is at samepotential as the baseCorrect answer is option 'C'. Can you explain this answer?.
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