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p-n junction is said to be forward biased, when [1988]
- a)the positive pole of the battery is joined tothe p-semiconductor and negative pole tothe n-semiconductor
- b)the positive pole of the battery is joined tothe n-semiconductor and p-semiconductor
- c)the positive pole of the battery is connectedto n- semiconductor and p-semiconductor
- d)a mechanical force is applied in the forwarddirection
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
p-n junction is said to be forward biased, when [1988]a)the positive...
For forward biasing of p-n junction, the
positive terminal of external battery is to be
connected to p-semiconductor and negative
terminal of battery to the n-semiconductor.
positive terminal of external battery is to be
connected to p-semiconductor and negative
terminal of battery to the n-semiconductor.
Most Upvoted Answer
p-n junction is said to be forward biased, when [1988]a)the positive...
The correct answer is option 'A': the positive pole of the battery is joined to the p-semiconductor and the negative pole to the n-semiconductor.
When a p-n junction is forward biased, it means that an external voltage is applied to the p-n junction in a way that allows current to flow easily across the junction. This is achieved by connecting the positive terminal of the battery to the p-semiconductor and the negative terminal to the n-semiconductor.
Explanation:
1. Introduction to p-n junction:
a. A p-n junction is formed when a p-type semiconductor and an n-type semiconductor are brought together.
b. The p-type semiconductor has an excess of positive charge carriers (holes), while the n-type semiconductor has an excess of negative charge carriers (electrons).
2. Biasing of a p-n junction:
a. Biasing refers to the application of an external voltage to a p-n junction.
b. There are two types of biasing: forward biasing and reverse biasing.
3. Forward biasing of a p-n junction:
a. In forward biasing, the positive terminal of the battery is connected to the p-semiconductor, and the negative terminal is connected to the n-semiconductor.
b. This arrangement creates an electric field that helps to reduce the potential barrier at the junction.
c. The positive terminal repels the holes in the p-side and attracts the electrons in the n-side, creating a flow of charge carriers across the junction.
d. As a result, current can easily flow through the p-n junction.
4. Reverse biasing of a p-n junction:
a. In reverse biasing, the positive terminal of the battery is connected to the n-semiconductor, and the negative terminal is connected to the p-semiconductor.
b. This arrangement increases the potential barrier at the junction, making it difficult for current to flow.
c. The positive terminal attracts the electrons in the n-side and repels the holes in the p-side, preventing the flow of charge carriers across the junction.
5. Conclusion:
In the given question, the correct option 'A' states that the positive pole of the battery is joined to the p-semiconductor and the negative pole to the n-semiconductor. This arrangement corresponds to forward biasing of the p-n junction, allowing current to flow easily across the junction.
When a p-n junction is forward biased, it means that an external voltage is applied to the p-n junction in a way that allows current to flow easily across the junction. This is achieved by connecting the positive terminal of the battery to the p-semiconductor and the negative terminal to the n-semiconductor.
Explanation:
1. Introduction to p-n junction:
a. A p-n junction is formed when a p-type semiconductor and an n-type semiconductor are brought together.
b. The p-type semiconductor has an excess of positive charge carriers (holes), while the n-type semiconductor has an excess of negative charge carriers (electrons).
2. Biasing of a p-n junction:
a. Biasing refers to the application of an external voltage to a p-n junction.
b. There are two types of biasing: forward biasing and reverse biasing.
3. Forward biasing of a p-n junction:
a. In forward biasing, the positive terminal of the battery is connected to the p-semiconductor, and the negative terminal is connected to the n-semiconductor.
b. This arrangement creates an electric field that helps to reduce the potential barrier at the junction.
c. The positive terminal repels the holes in the p-side and attracts the electrons in the n-side, creating a flow of charge carriers across the junction.
d. As a result, current can easily flow through the p-n junction.
4. Reverse biasing of a p-n junction:
a. In reverse biasing, the positive terminal of the battery is connected to the n-semiconductor, and the negative terminal is connected to the p-semiconductor.
b. This arrangement increases the potential barrier at the junction, making it difficult for current to flow.
c. The positive terminal attracts the electrons in the n-side and repels the holes in the p-side, preventing the flow of charge carriers across the junction.
5. Conclusion:
In the given question, the correct option 'A' states that the positive pole of the battery is joined to the p-semiconductor and the negative pole to the n-semiconductor. This arrangement corresponds to forward biasing of the p-n junction, allowing current to flow easily across the junction.
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p-n junction is said to be forward biased, when [1988]a)the positive pole of the battery is joined tothe p-semiconductor and negative pole tothe n-semiconductorb)the positive pole of the battery is joined tothe n-semiconductor and p-semiconductorc)the positive pole of the battery is connectedto n- semiconductor and p-semiconductord)a mechanical force is applied in the forwarddirectionCorrect answer is option 'A'. Can you explain this answer?
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