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For an SCR in the forward blocking mode (practically)
- a)leakage current does not flow
- b)leakage current flows from anode to cathode
- c)leakage current flows from cathode to anode
- d)leakage current flows from gate to anode
Correct answer is option 'B'. Can you explain this answer?
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For an SCR in the forward blocking mode (practically)a)leakage current...
In the forward blocking mode, the gate current is zero & only the middle J2 junction is reversed biased.
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For an SCR in the forward blocking mode (practically)a)leakage current...
Forward Blocking Mode in SCR
In an SCR, when the anode is connected to a positive voltage and the cathode is connected to a negative voltage, the SCR is said to be in the forward blocking mode. In this mode, the SCR does not conduct current until the anode voltage reaches its forward breakdown voltage.
Leakage Current in Forward Blocking Mode
Leakage current is the current that flows through the SCR when it is in the blocking mode. In the forward blocking mode, the leakage current flows from the anode to the cathode of the SCR. This is due to the fact that the SCR has a small amount of reverse leakage current that flows through it.
Explanation of Options
Option A: Leakage current does not flow
This option is incorrect because there is always some amount of leakage current that flows through the SCR in the forward blocking mode.
Option B: Leakage current flows from anode to cathode
This option is correct because the leakage current flows from the anode to the cathode of the SCR in the forward blocking mode.
Option C: Leakage current flows from cathode to anode
This option is incorrect because the leakage current flows from the anode to the cathode of the SCR in the forward blocking mode.
Option D: Leakage current flows from gate to anode
This option is incorrect because the gate current is zero in the forward blocking mode.
Conclusion
In conclusion, the correct option is B, which states that the leakage current flows from the anode to the cathode of the SCR in the forward blocking mode.
In an SCR, when the anode is connected to a positive voltage and the cathode is connected to a negative voltage, the SCR is said to be in the forward blocking mode. In this mode, the SCR does not conduct current until the anode voltage reaches its forward breakdown voltage.
Leakage Current in Forward Blocking Mode
Leakage current is the current that flows through the SCR when it is in the blocking mode. In the forward blocking mode, the leakage current flows from the anode to the cathode of the SCR. This is due to the fact that the SCR has a small amount of reverse leakage current that flows through it.
Explanation of Options
Option A: Leakage current does not flow
This option is incorrect because there is always some amount of leakage current that flows through the SCR in the forward blocking mode.
Option B: Leakage current flows from anode to cathode
This option is correct because the leakage current flows from the anode to the cathode of the SCR in the forward blocking mode.
Option C: Leakage current flows from cathode to anode
This option is incorrect because the leakage current flows from the anode to the cathode of the SCR in the forward blocking mode.
Option D: Leakage current flows from gate to anode
This option is incorrect because the gate current is zero in the forward blocking mode.
Conclusion
In conclusion, the correct option is B, which states that the leakage current flows from the anode to the cathode of the SCR in the forward blocking mode.
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For an SCR in the forward blocking mode (practically)a)leakage current does not flowb)leakage current flows from anode to cathodec)leakage current flows from cathode to anoded)leakage current flows from gate to anodeCorrect answer is option 'B'. Can you explain this answer?
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