Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > A BJT is said to be operating in saturation r...
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A BJT is said to be operating in saturation region if
- a)both junctions are reverse biased
- b)both junctions are forward biased
- c)base emitter junction is forward biased and base collector junction is reverse biased
- d)base collector junction is forward biased and base emitter junction is reverse biased
Correct answer is option 'B'. Can you explain this answer?
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A BJT is said to be operating in saturation region ifa)both junctions ...
For saturation both junctions have to be forward biased.
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A BJT is said to be operating in saturation region ifa)both junctions ...
Operating in Saturation Region
In a BJT (Bipolar Junction Transistor), there are three possible regions of operation: the cutoff region, the active region, and the saturation region. The saturation region is the region where both junctions of the transistor are forward biased.
Understanding the Options
Let's analyze the given options one by one to determine which one represents the saturation region.
a) Both junctions are reverse biased: In this case, the transistor is in the cutoff region, not the saturation region. In the cutoff region, both junctions are reverse biased, and no current flows through the transistor.
b) Both junctions are forward biased: This option represents the saturation region. When both junctions are forward biased, the transistor enters the saturation region, and a large amount of current flows through it.
c) Base-emitter junction is forward biased and base-collector junction is reverse biased: This configuration represents the active region, not the saturation region. In the active region, the base-emitter junction is forward biased, allowing the base current to control the collector current. However, the base-collector junction is reverse biased.
d) Base-collector junction is forward biased and base-emitter junction is reverse biased: This configuration represents the active region, similar to option c. The base-collector junction is forward biased, allowing the collector current to be controlled by the base current. However, the base-emitter junction is reverse biased.
Conclusion
Among the given options, option b is the correct answer. In the saturation region, both junctions of the BJT are forward biased, allowing a large amount of current to flow through the transistor. It is important to understand the various regions of operation in a BJT as it helps in analyzing and designing transistor circuits for specific applications.
In a BJT (Bipolar Junction Transistor), there are three possible regions of operation: the cutoff region, the active region, and the saturation region. The saturation region is the region where both junctions of the transistor are forward biased.
Understanding the Options
Let's analyze the given options one by one to determine which one represents the saturation region.
a) Both junctions are reverse biased: In this case, the transistor is in the cutoff region, not the saturation region. In the cutoff region, both junctions are reverse biased, and no current flows through the transistor.
b) Both junctions are forward biased: This option represents the saturation region. When both junctions are forward biased, the transistor enters the saturation region, and a large amount of current flows through it.
c) Base-emitter junction is forward biased and base-collector junction is reverse biased: This configuration represents the active region, not the saturation region. In the active region, the base-emitter junction is forward biased, allowing the base current to control the collector current. However, the base-collector junction is reverse biased.
d) Base-collector junction is forward biased and base-emitter junction is reverse biased: This configuration represents the active region, similar to option c. The base-collector junction is forward biased, allowing the collector current to be controlled by the base current. However, the base-emitter junction is reverse biased.
Conclusion
Among the given options, option b is the correct answer. In the saturation region, both junctions of the BJT are forward biased, allowing a large amount of current to flow through the transistor. It is important to understand the various regions of operation in a BJT as it helps in analyzing and designing transistor circuits for specific applications.
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A BJT is said to be operating in saturation region ifa)both junctions are reverse biasedb)both junctions are forward biasedc)base emitter junction is forward biased and base collector junction is reverse biasedd)base collector junction is forward biased and base emitter junction is reverse biasedCorrect answer is option 'B'. Can you explain this answer?
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A BJT is said to be operating in saturation region ifa)both junctions are reverse biasedb)both junctions are forward biasedc)base emitter junction is forward biased and base collector junction is reverse biasedd)base collector junction is forward biased and base emitter junction is reverse biasedCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for A BJT is said to be operating in saturation region ifa)both junctions are reverse biasedb)both junctions are forward biasedc)base emitter junction is forward biased and base collector junction is reverse biasedd)base collector junction is forward biased and base emitter junction is reverse biasedCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of A BJT is said to be operating in saturation region ifa)both junctions are reverse biasedb)both junctions are forward biasedc)base emitter junction is forward biased and base collector junction is reverse biasedd)base collector junction is forward biased and base emitter junction is reverse biasedCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
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