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Which of the following is true in case of an unbiased p-n junction diode? (A) Diffusion does not take place (B) Diffusion of electrons & holes goes on infinitely (C)There is zero electrical potential across the junctions (D) Charges establish an electric field across the junction?
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Which of the following is true in case of an unbiased p-n junction dio...
In case of an unbiased p-n junction diode, option (D) is true: charges establish an electric field across the junction.
When a p-n junction diode is unbiased, it means that no voltage is applied across the diode. In this case, the concentration of electrons and holes in the p-type and n-type regions is not equal, and this creates a potential difference across the junction. This potential difference creates an electric field across the junction, which influences the movement of electrons and holes across the junction.
Option (A) is not true, because diffusion does take place in an unbiased p-n junction diode. Option (B) is also not true, because the diffusion of electrons and holes is limited by the electric field across the junction. Option (C) is not true because there is a potential difference across the junction due to the concentration gradient of electrons and holes.
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Which of the following is true in case of an unbiased p-n junction dio...
Takes place from the p-region to the n-region (C) Diffusion of electrons takes place from the n-region to the p-region (D) No current flows through the diode.
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Read the following text and answer the following questions on the basis of the same:Tribo-electric series: The tribo-electric series is a list that ranks materials according to their tendency to gain or lose electrons. The process of electron transfer as a result of two objects coming into contact with one another and then separating is called tribo-electric charging. During such an interaction, one of the two objects will always gain electrons (becoming negatively charge d) and the other object will lose electrons (becoming positively charged). The relative position of the two objects on the tribo-electric series will define which object gains electrons and which object loses electrons. In tribo-electric series, materials are ranked from high to low in terms of the tendency for the material to lose electrons. If an object high up on this list (Glass, for exampl e) is rubbed with an object low down on the list (Teflon, for example), the glass will lose electrons to the teflon. The glass will, in this case, become positively charged and the teflon will become negatively charged. Materials in the middle of the list (steel and wood, for example) are items those do not have a strong tendency to give up or accept electrons.Tribo-electric charging is the process of electron transfer between two objects

Which of the following is true in case of an unbiased p-n junction diode? (A) Diffusion does not take place (B) Diffusion of electrons & holes goes on infinitely (C)There is zero electrical potential across the junctions (D) Charges establish an electric field across the junction?
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Which of the following is true in case of an unbiased p-n junction diode? (A) Diffusion does not take place (B) Diffusion of electrons & holes goes on infinitely (C)There is zero electrical potential across the junctions (D) Charges establish an electric field across the junction? 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 Which of the following is true in case of an unbiased p-n junction diode? (A) Diffusion does not take place (B) Diffusion of electrons & holes goes on infinitely (C)There is zero electrical potential across the junctions (D) Charges establish an electric field across the junction? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is true in case of an unbiased p-n junction diode? (A) Diffusion does not take place (B) Diffusion of electrons & holes goes on infinitely (C)There is zero electrical potential across the junctions (D) Charges establish an electric field across the junction?.
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