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In a p-n junction diode not connected to any circuit
- a)The potential is the same everywhere
- b)The p-side is at higher potential than the n-side
- c)There is an electric field at the junction directed from the n-side to p-side.
- d)There is an electric field at the junction directed from the p-side to n-side.
Correct answer is option 'C'. Can you explain this answer?
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In a p-n junction diode not connected to any circuita)The potential is...
At junction a potential barrier/depletion layer is formed, with n-side at higher potential and p-side at lower potential. Therefore, there is an electric field at the junction directed from the n-side to p-side.
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In a p-n junction diode not connected to any circuita)The potential is...
Understanding the p-n Junction Diode
A p-n junction diode is formed by joining p-type and n-type semiconductors. When not connected to any external circuit, certain phenomena occur at the junction.
Formation of Depletion Region
- When the p-type and n-type materials are brought together, electrons from the n-side (where there are excess electrons) diffuse into the p-side (where there are holes).
- Similarly, holes from the p-side diffuse into the n-side.
- This movement of charge carriers results in a depletion region, where recombination leaves behind fixed, charged ions.
Development of Electric Field
- The diffusion of electrons and holes leads to the formation of an electric field across the depletion region.
- This electric field is directed from the n-side (negative) to the p-side (positive).
Potential Difference
- The p-side becomes positively charged relative to the n-side, leading to a potential difference.
- However, the potential is not uniform everywhere; it varies across the junction.
Why Option C is Correct
- The electric field at the junction is directed from the n-side to the p-side due to the built-up positive charge on the p-side and negative charge on the n-side.
- This electric field opposes further diffusion of charge carriers, establishing equilibrium.
In summary, option 'C' correctly describes the electric field direction at the p-n junction, highlighting the essential characteristics of the diode when it is not connected to any circuit.
A p-n junction diode is formed by joining p-type and n-type semiconductors. When not connected to any external circuit, certain phenomena occur at the junction.
Formation of Depletion Region
- When the p-type and n-type materials are brought together, electrons from the n-side (where there are excess electrons) diffuse into the p-side (where there are holes).
- Similarly, holes from the p-side diffuse into the n-side.
- This movement of charge carriers results in a depletion region, where recombination leaves behind fixed, charged ions.
Development of Electric Field
- The diffusion of electrons and holes leads to the formation of an electric field across the depletion region.
- This electric field is directed from the n-side (negative) to the p-side (positive).
Potential Difference
- The p-side becomes positively charged relative to the n-side, leading to a potential difference.
- However, the potential is not uniform everywhere; it varies across the junction.
Why Option C is Correct
- The electric field at the junction is directed from the n-side to the p-side due to the built-up positive charge on the p-side and negative charge on the n-side.
- This electric field opposes further diffusion of charge carriers, establishing equilibrium.
In summary, option 'C' correctly describes the electric field direction at the p-n junction, highlighting the essential characteristics of the diode when it is not connected to any circuit.
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In a p-n junction diode not connected to any circuita)The potential is the same everywhereb)The p-side is at higher potential than the n-sidec)There is an electric field at the junction directed from the n-side to p-side.d)There is an electric field at the junction directed from the p-side to n-side.Correct answer is option 'C'. Can you explain this answer?
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In a p-n junction diode not connected to any circuita)The potential is the same everywhereb)The p-side is at higher potential than the n-sidec)There is an electric field at the junction directed from the n-side to p-side.d)There is an electric field at the junction directed from the p-side to n-side.Correct answer is option 'C'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about In a p-n junction diode not connected to any circuita)The potential is the same everywhereb)The p-side is at higher potential than the n-sidec)There is an electric field at the junction directed from the n-side to p-side.d)There is an electric field at the junction directed from the p-side to n-side.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a p-n junction diode not connected to any circuita)The potential is the same everywhereb)The p-side is at higher potential than the n-sidec)There is an electric field at the junction directed from the n-side to p-side.d)There is an electric field at the junction directed from the p-side to n-side.Correct answer is option 'C'. Can you explain this answer?.
In a p-n junction diode not connected to any circuita)The potential is the same everywhereb)The p-side is at higher potential than the n-sidec)There is an electric field at the junction directed from the n-side to p-side.d)There is an electric field at the junction directed from the p-side to n-side.Correct answer is option 'C'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about In a p-n junction diode not connected to any circuita)The potential is the same everywhereb)The p-side is at higher potential than the n-sidec)There is an electric field at the junction directed from the n-side to p-side.d)There is an electric field at the junction directed from the p-side to n-side.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a p-n junction diode not connected to any circuita)The potential is the same everywhereb)The p-side is at higher potential than the n-sidec)There is an electric field at the junction directed from the n-side to p-side.d)There is an electric field at the junction directed from the p-side to n-side.Correct answer is option 'C'. Can you explain this answer?.
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In a p-n junction diode not connected to any circuita)The potential is the same everywhereb)The p-side is at higher potential than the n-sidec)There is an electric field at the junction directed from the n-side to p-side.d)There is an electric field at the junction directed from the p-side to n-side.Correct answer is option 'C'. Can you explain this answer?, a detailed solution for In a p-n junction diode not connected to any circuita)The potential is the same everywhereb)The p-side is at higher potential than the n-sidec)There is an electric field at the junction directed from the n-side to p-side.d)There is an electric field at the junction directed from the p-side to n-side.Correct answer is option 'C'. Can you explain this answer? has been provided alongside types of In a p-n junction diode not connected to any circuita)The potential is the same everywhereb)The p-side is at higher potential than the n-sidec)There is an electric field at the junction directed from the n-side to p-side.d)There is an electric field at the junction directed from the p-side to n-side.Correct answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
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