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What is the region on the output characteristics below IC = ICEO line called?
- a)Active region
- b)Cutoff region
- c)Saturation region
- d)None of the mentioned
Correct answer is option 'B'. Can you explain this answer?
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What is the region on the output characteristics below IC= ICEOline ca...
The region below IC = ICEO is called the cutoff region.
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What is the region on the output characteristics below IC= ICEOline ca...
Understanding the Output Characteristics
In the context of output characteristics of a transistor, particularly in a bipolar junction transistor (BJT), the region labeled as IC = ICEO line is crucial for understanding the behavior of the transistor in different operating states.
Definition of ICEO
- ICEO refers to the collector current when the base current (IB) is zero. This current indicates the leakage current when the transistor is in the cutoff state.
Cutoff Region Explained
- The cutoff region is defined as the state where the transistor is "off." In this region:
- The base current (IB) is negligible or zero.
- The transistor does not conduct between the collector and emitter.
- The collector current (IC) is approximately zero.
- As a result, the ICEO line represents the maximum collector current due to leakage, indicating that the transistor is not actively amplifying any input signal.
Why Option B is Correct
- Since the IC = ICEO line signifies the transition to a state where the base current is absent, it fundamentally represents the cutoff region.
- In this region, the transistor is effectively turned off, which aligns with the definition of the cutoff region.
Other Regions for Context
- Active Region: The transistor operates as an amplifier, and both IC and IB are significant.
- Saturation Region: The transistor is fully "on," with maximum IC for a given IB.
In conclusion, the region marked by IC = ICEO clearly indicates the cutoff state of the transistor, where it does not conduct, making option 'B' the correct answer.
In the context of output characteristics of a transistor, particularly in a bipolar junction transistor (BJT), the region labeled as IC = ICEO line is crucial for understanding the behavior of the transistor in different operating states.
Definition of ICEO
- ICEO refers to the collector current when the base current (IB) is zero. This current indicates the leakage current when the transistor is in the cutoff state.
Cutoff Region Explained
- The cutoff region is defined as the state where the transistor is "off." In this region:
- The base current (IB) is negligible or zero.
- The transistor does not conduct between the collector and emitter.
- The collector current (IC) is approximately zero.
- As a result, the ICEO line represents the maximum collector current due to leakage, indicating that the transistor is not actively amplifying any input signal.
Why Option B is Correct
- Since the IC = ICEO line signifies the transition to a state where the base current is absent, it fundamentally represents the cutoff region.
- In this region, the transistor is effectively turned off, which aligns with the definition of the cutoff region.
Other Regions for Context
- Active Region: The transistor operates as an amplifier, and both IC and IB are significant.
- Saturation Region: The transistor is fully "on," with maximum IC for a given IB.
In conclusion, the region marked by IC = ICEO clearly indicates the cutoff state of the transistor, where it does not conduct, making option 'B' the correct answer.
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What is the region on the output characteristics below IC= ICEOline called?a)Active regionb)Cutoff regionc)Saturation regiond)None of the mentionedCorrect answer is option 'B'. Can you explain this answer?
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