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Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.
Assertion (A): When a p-n junction diode is reverse biased, a feeble reverse current flows known as reverse saturation current.
Reason (R): In reverse bias condition, the minority carries can cross the junction.
- a)Both A and R are true and R is the correct explanation of A
- b)Both A and R are true but R is NOT the correct explanation of A
- c)A is true but R is false
- d)A is false and R is true
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
Directions : In the following questions, A statement of Assertion (A)...
When a p-n junction is reverse biased, then the majority charge carriers cannot cross the junction. So, no forward current flows. But in reverse direction, a feeble current flows which is known as reverse saturation current. So, the assertion is true.
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In p-side there are few electrons as minority charge carrier and in n-side, there are few holes as minority charge carriers. In reverse bias condition, the holes at n-side feel a pull exerted by the negative polarity of the voltage source connected to the p-side. Similarly, the electrons at p-side feel a pull exerted by the positive polarity of the voltage source connected to the n-side. So, these minority carries now can cross the junction and give rise to a feeble current in the opposite direction. Hence, the reason is also true and it explains the assertion.
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Directions : In the following questions, A statement of Assertion (A)...
Assertion (A): When a p-n junction diode is reverse biased, a feeble reverse current flows known as reverse saturation current.
Reason (R): In reverse bias condition, the minority carriers can cross the junction.
The correct answer is option A, which states that both Assertion (A) and Reason (R) are true, and R is the correct explanation of A.
Explanation:
1. P-N Junction Diode:
A p-n junction diode is formed by joining together a p-type semiconductor and an n-type semiconductor. The p-type semiconductor has excess holes (positive charge carriers), while the n-type semiconductor has excess electrons (negative charge carriers). When the p-n junction is formed, electrons from the n-side diffuse across the junction to the p-side, and holes from the p-side diffuse across the junction to the n-side. This diffusion process creates a region near the junction called the depletion region.
2. Forward Bias and Reverse Bias:
When a p-n junction diode is connected in a forward bias condition, the positive terminal of the battery is connected to the p-side of the diode and the negative terminal is connected to the n-side. This forward bias condition allows current to flow through the diode easily, as the positive terminal repels the holes in the p-side and attracts the electrons from the n-side.
On the other hand, when a p-n junction diode is connected in a reverse bias condition, the positive terminal of the battery is connected to the n-side of the diode and the negative terminal is connected to the p-side. This reverse bias condition opposes the flow of current through the diode, as the positive terminal attracts the electrons in the n-side and repels the holes in the p-side.
3. Reverse Saturation Current:
In a reverse bias condition, a feeble reverse current known as reverse saturation current flows through the diode. This reverse current is due to the minority carriers (electrons in the p-side and holes in the n-side) that are thermally generated. These minority carriers can cross the depletion region under the influence of the electric field in the reverse bias condition.
4. Explanation of Assertion and Reason:
Assertion (A) states that when a p-n junction diode is reverse biased, a feeble reverse current flows known as reverse saturation current. This is true, as explained in point 3.
Reason (R) states that in reverse bias condition, the minority carriers can cross the junction. This is also true because the electric field created by the reverse bias condition allows the minority carriers to cross the depletion region and contribute to the reverse saturation current.
Therefore, both Assertion (A) and Reason (R) are true, and Reason (R) correctly explains Assertion (A).
Reason (R): In reverse bias condition, the minority carriers can cross the junction.
The correct answer is option A, which states that both Assertion (A) and Reason (R) are true, and R is the correct explanation of A.
Explanation:
1. P-N Junction Diode:
A p-n junction diode is formed by joining together a p-type semiconductor and an n-type semiconductor. The p-type semiconductor has excess holes (positive charge carriers), while the n-type semiconductor has excess electrons (negative charge carriers). When the p-n junction is formed, electrons from the n-side diffuse across the junction to the p-side, and holes from the p-side diffuse across the junction to the n-side. This diffusion process creates a region near the junction called the depletion region.
2. Forward Bias and Reverse Bias:
When a p-n junction diode is connected in a forward bias condition, the positive terminal of the battery is connected to the p-side of the diode and the negative terminal is connected to the n-side. This forward bias condition allows current to flow through the diode easily, as the positive terminal repels the holes in the p-side and attracts the electrons from the n-side.
On the other hand, when a p-n junction diode is connected in a reverse bias condition, the positive terminal of the battery is connected to the n-side of the diode and the negative terminal is connected to the p-side. This reverse bias condition opposes the flow of current through the diode, as the positive terminal attracts the electrons in the n-side and repels the holes in the p-side.
3. Reverse Saturation Current:
In a reverse bias condition, a feeble reverse current known as reverse saturation current flows through the diode. This reverse current is due to the minority carriers (electrons in the p-side and holes in the n-side) that are thermally generated. These minority carriers can cross the depletion region under the influence of the electric field in the reverse bias condition.
4. Explanation of Assertion and Reason:
Assertion (A) states that when a p-n junction diode is reverse biased, a feeble reverse current flows known as reverse saturation current. This is true, as explained in point 3.
Reason (R) states that in reverse bias condition, the minority carriers can cross the junction. This is also true because the electric field created by the reverse bias condition allows the minority carriers to cross the depletion region and contribute to the reverse saturation current.
Therefore, both Assertion (A) and Reason (R) are true, and Reason (R) correctly explains Assertion (A).
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Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): When a p-n junction diode is reverse biased, a feeble reverse current flows known as reverse saturation current.Reason (R): In reverse bias condition, the minority carries can cross the junction.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'A'. Can you explain this answer?
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Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): When a p-n junction diode is reverse biased, a feeble reverse current flows known as reverse saturation current.Reason (R): In reverse bias condition, the minority carries can cross the junction.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'A'. 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 Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): When a p-n junction diode is reverse biased, a feeble reverse current flows known as reverse saturation current.Reason (R): In reverse bias condition, the minority carries can cross the junction.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'A'. 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 Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): When a p-n junction diode is reverse biased, a feeble reverse current flows known as reverse saturation current.Reason (R): In reverse bias condition, the minority carries can cross the junction.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'A'. Can you explain this answer?.
Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): When a p-n junction diode is reverse biased, a feeble reverse current flows known as reverse saturation current.Reason (R): In reverse bias condition, the minority carries can cross the junction.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'A'. 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 Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): When a p-n junction diode is reverse biased, a feeble reverse current flows known as reverse saturation current.Reason (R): In reverse bias condition, the minority carries can cross the junction.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'A'. 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 Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): When a p-n junction diode is reverse biased, a feeble reverse current flows known as reverse saturation current.Reason (R): In reverse bias condition, the minority carries can cross the junction.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'A'. Can you explain this answer?.
Solutions for Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): When a p-n junction diode is reverse biased, a feeble reverse current flows known as reverse saturation current.Reason (R): In reverse bias condition, the minority carries can cross the junction.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12.
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Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): When a p-n junction diode is reverse biased, a feeble reverse current flows known as reverse saturation current.Reason (R): In reverse bias condition, the minority carries can cross the junction.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): When a p-n junction diode is reverse biased, a feeble reverse current flows known as reverse saturation current.Reason (R): In reverse bias condition, the minority carries can cross the junction.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): When a p-n junction diode is reverse biased, a feeble reverse current flows known as reverse saturation current.Reason (R): In reverse bias condition, the minority carries can cross the junction.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
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