hall effect experiment viva questions

9. 7. The Hall Effect is due to the nature of the current in a conductor. (In case of metal and semi-conductor with reason) 3) Depletion layer? The result is an asymmetric distribution of charge density across the Hall element that is perpendicular to both the ‘line of sight’ path and the applied magnetic field. If an electric currents is made to flow through a conductor in a magnetic field , the magnetic field will exert a transverse force on the moving charge carriers which tends to push them to one side of the conductor. First,we understand what is Hall voltage? 1. How does mobility depend on electrical conductivity? In the classical view, there are only electrons moving in the same average direction both in the case of electron or hole conductivity. 14. The Hall Effect experiment For this purpose, the knowledge of the apparatus is must, like: The first one is electromagnet power supply by which we provide the current in an amp to the electric coils (like the solenoid) as a result we get a uniform magnetic field between the two poles of steel which are inserted in â¦ Viva Questions Mar 16, 2017 Mar 16, 2017 Manas Sharma The following are some of the frequently asked questions for Viva of the Four Probe Experiment, to determine the resistivity and Energy Bandâ¦ Read More When a current carrying conductor placed inside of magnetic field a voltage is developed in a direction perpendicular to both current and magnetic field. 4) N- and p viva questions on newtons rings Get link Facebook Twitter Pinterest Email Other Apps April 23, 2019 1.) Thank You dear Prince, sure I will try to upload it very soon, Thanks sir,. However, when a magnetic field with a perpendicular component is applied, their paths between collisions are curved so that moving charges accumulate on one face of the material. 10 Questions and answers re: resistivity & resistance, sheet resistance, volume resistivity, surface resistivity by John Clark of Jandel Engineering 11 Q & A regarding the use of Jandel Resistivity Measurement equipment by Pete Clark of â¦ 2 Fig.2 If we move away from O towards the right or left, the intensity of the magnetic field decreases. The Hall Effect is the production of a voltage difference (the Hall voltage) across an electrical conductor, transverse to an electric current in the conductor and a magnetic field perpendicular to the current. Ans.) Define hall coefficient. Get the latest information and technology news in your inbox. Like to share my knowledge in Physics and applications using this Blog and a YouTube channel. The connections are made with the sample properly. 4. The above statement is a) True b) False View Answer Apparatus :- 1) Gauss meter with probe 2 The following are some of the frequently asked questions for Viva of the Four Probe Experiment, to determine the resistivity and Energy Band gap of a semiconductor. Conduct the experiment for obtaining the forward bias VI characteristics of the given diode.if the cut in voltage is â¦ It was discovered by Edwin Hall in 1879. 16. Hall effect, development of a transverse electric field in a solid material when it carries an electric current and is placed in a magnetic field that is perpendicular to the current. Current consists of the movement of many small charge carriers, typically electrons, holes, ions or all three. 10. The first one is electromagnet power supply by which we provide the current in an amp to the electric coils (like the solenoid) as a result we get a uniform magnetic field between the two poles of steel which are inserted in the coils already. For this purpose, the knowledge of the apparatus is must, like: Gaussmeter with Gauss probe; this is used to measure the magnetic field density, the flux in between the poles and it remains constant throughout the experiment ….its value depends on the magnitude of the current. At this time, Hall used thin gold foil to accomplish the experiment. What is the effect of temperature on Hall coefficient of a lightly doped semiconductor? Hall Effect Experiment - Duration: 3:36. 17. Hall Effect Multiple Choice Questions Answers 36. Hall Effect Experiment â [LAB MANUAL] Lab Manual M.Sc Physics Physics Study Material Feb 1, 2017 Feb 1, 2017 Manas Sharma I recently performed this experiment in the Solid States Lab during the II semester for M.Sc Physics course at â¦ Sorry, your blog cannot share posts by email. I like to develop Physics related apps and softwares from time to time. This cannot explain the opposite sign of the Hall Effect observed. 2) Relation of resistivity and T? Does the Hall coefficient depend on the dimensions of the sample? Hall E ect in Semiconductor 2. In this situation charge particle moves without any deviation further, this is known as steady-state and phenomenon hall effect. Hall Effect Experiment and 10 Viva Questions Best-known Magnetic Susceptibility Experiment 20â¦ Michelson Interferometer Experiment 15 Viva Questions Melde Experiment Viva Questions BSc Planck's Constant Experiment Excellent 15 Viva Questions Theory: If a current carrying conductor placed in a perpendicular magnetic field, a potential difference will generate in the conductor which is â¦ Finally, in October, 1879, Hall measured the lateral potential difference successfully. The direction of force can be explained with the help of Fleming’s left-hand rule and so hall effect. For more information, see the Advanced Lab Syllabus. Q.What is Hall Effect? Engineering Physics Lab Viva Questions for Physics Practical Exam Series Resonance : R-L-C,Practical BEE Important Physics Class 12 Viva Questions 2019How Hall Effect Works in n-TYPE \u0026 p-TYPE Semiconductors | â¦ 15. 1. Brahma Chary Hall effect Aim :- 1) To determine the Hall coefficient (R H) 2) To measure the unknown magnetic field (B Y1) and to compare it with that measured by the Gaussmeter (B Y2). 25 Amazing Geiger Counter Lab Viva Questions, How to Find LASER Wavelength Using a Diffraction…, Photo electric effect | Equation and Experiemnt, Best-known Magnetic Susceptibility Experiment 20…, Determination of Magnetic Susceptibility Experiment, Magnetic Susceptibility by Quincke Method, How to Measure the Magnetic Susceptibility of FeCl3 solution by Quinke Method, Exchange Forces & The Helium Atom|Quantum Mechanics Graduate Physics, Table of 11 | Read and Learn 11 Multiplication Table | Maths, Table of 10 | Read and Learn 10 Multiplication Table | Maths, Table of 9 | Read and Learn 9 Multiplication Table | Maths, Table of 8 | Read and Learn 8 Multiplication Table | Maths, Table of 7 | Read and Learn 7 Multiplication Table | Maths. When a magnetic field is present that is not parallel to the direction of motion of moving charges, these charges experience a force, called the Lorentz force. Define Hall angle. Some concepts should be very clear before the performance of the experiment, like knowledge of Flemming’s left-hand rule, Lorentz’s force and direction of the magnetic field. In the Hall effect experiment, a P-type semiconductor bar of width 1 cm and length of 5 cm is placed in the magnetic field of 0.5 Tesla. When such a magnetic field is absent, the charges follow approximately straight, ‘line of sight’ paths between collisions with impurities, phonon, etc. 5. 11. I'm a physicist specializing in theoretical, computational and experimental condensed matter physics. Page 1 of 6 P.S. Required fields are marked *. The Hall Eï¬ect 1 Background In this experiment, the Hall Eï¬ect will be used to study some of the physics of charge transport in metal and semiconductor samples. Post was not sent - check your email addresses! https://apniphysics.com/expt-3hall-effect-experiment-detail-formulation-and-viva-questions-and-demonstration/. , can you provide answer for these questions. Hall effect, electric field and hall voltage by using Fleming’s Left-hand rule explained here. Newtons Ring Experiment 18-Amazing Viva Questions 25 Amazing Geiger Counter Lab Viva Questions Michelson Interferometer Experiment 15 Viva Questions Best-known Magnetic Susceptibility Experiment 20â¦ Hall Effect Experiment and 10 Viva Questions The difference is that electrons in the upper bound of the valence band have opposite group velocity and wave vector direction when moving, which can be effectively treated as if positively charged particles (holes) moved in the opposite direction to that of the electrons. Notify me of follow-up comments by email. Follow the video tutorial below for full information. 3 thoughts on â Viva Questions for HALL Effect â Manish February 8, 2017 Thanks dear they are very useful â¦ Reply Manas Sharma February 8, 2017 Thanks for your comment. In 1879 E. H. Hall observed that when an electrical current passes through a â¦ Physics Viva questions Posts Showing posts from April, 2019 Show all energy band gap Get link Facebook Twitter Pinterest Email Other Apps April 24, 2019 what is meant by semiconductor ? Instrument Manuals This lab will be graded 30% on theory, 20% on technique, and 50% on analysis. Why Hall Effect And It's Importance - Duration: 24:30. 6. The Hall effect is the production of a voltage difference (the Hall voltage) across an electrical conductor, transverse to an electric current in the conductor and to an applied magnetic field perpendicular to the current. Please login if â¦ Experiment Questions: 1.Experimently find out whether the given diode is made of Germanium or Silicon. Your email address will not be published. [1][2] A Hall effect can also occur across a void â¦ About This Quiz & Worksheet The center of focus on this quiz and worksheet will be on concepts like polarizers, polarization, Malus' Law, and light intensity. Respected sir , please also upload a video on the experiment of measuring the e/m ratio. It helps a lot.. As we know that charge is accumulating continuously so at a particular stage the electric field force strength becomes equal to the magnetic field force. Van Der Pauw Theorem 3. Before coming to the answer. Thanks for your comment. This set of Electronic Devices and Circuits Multiple Choice Questions & Answers (MCQs) focuses on âThe Hall Effectâ. In the Hall Effect, the directions of electric field and magnetic field are parallel to each other. Why is the Hall coefficient of semiconductors many orders of magnitude sgreater than In what units is Hall’s coefficient measured in? This phenomenon was discovered in 1879 by â¦ Why is Four-Probe method preferred over other â¦ https://apniphysics.com/how-to-observe-hall-voltage-in-the-physics-lab-by-using-hall-effect-experiment/. Which type of charge has greater mobility? When the magnetic force is applied on the charge carrier (here holes) they start to accumulate on the upper face and as a result downward face becomes negatively charged, where further an Electric field develops in the downward direction (from positive face to negative face). Click to share on Facebook (Opens in new window), Click to share on Twitter (Opens in new window), Click to share on Google+ (Opens in new window), Click to share on WhatsApp (Opens in new window), Click to share on Pinterest (Opens in new window), Click to share on Reddit (Opens in new window), Click to share on LinkedIn (Opens in new window), Click to share on Skype (Opens in new window), Click to email this to a friend (Opens in new window), Click to share on Tumblr (Opens in new window), Click to share on Pocket (Opens in new window), Click to share on Telegram (Opens in new window). Follow the video tutorial below for full information. What is Voltage Source in Electric Circuits? This leaves equal and opposite charges exposed on the other face, where there is a scarcity of mobile charges. EXPERIMENT 20 The Hall Effect Note: Please read the Radiation Safety Regulations at the back of this book Objectives of the Experiment The behaviour of the Hall voltage in a sample of doped germanium is studied â¦ 8. 3. A graph showing the relation between the intensity of the magnetic field B and the distance x is given in Fig.2. Can code in most of the popular languages. Hall Effect Experiment and Viva Questions: In the hall effect experiment, we determine the hall voltage and hall coefficient. should the sample be thin? How are they related? Why not subscribe to our email list? What is the principle of the Hall effect ?âWhen we place a current-carrying semiconductor specimen in the presence of a uniform magnetic field, a potential difference creates between the two faces. In general, we ask our students to find the Hall Voltage and Hall Coefficient. Universal Education Point 21,571 views ... VIVA QUESTIONS ON PRISM EXPERIMENT| OPTICS | #PhysicsPractical #Prism #ApniPryogShala - Duration: 6:17. 1. Now one can define the current which in this case is flowing along the X-axis. PhD researcher at Friedrich-Schiller University Jena, Germany. Explain the increase of the resistance of the sample with the increase in magnetic field. Now, after making it clear that what components we are using in this experiment, then we start to take the observations. How is Hall’s coefficient related to the Hall’s Voltage (VH) and the thickness(t)? that of metals? It was discovered by Edwin Hall in 1879. What are Newton rings ? By using this current further drift velocity can be derived and can use to derive the result of Hall Voltage. A potential difference of 10 volts is applied across the edges. Dark and bright rings ar formed due to the presence of air film when Plano convex lens is â¦ Hall Effect Experiment and Viva Questions: In the hall effect experiment, we determine the hall voltage and hall coefficient . Given V H = 0.05 volts, Ï = 2.5 x 10-2 Î©-cm. Moving in the Hall coefficient of a lightly doped semiconductor, 20 % on technique, and mobility of carriers! Difference of 10 volts is applied across the edges Simulator Assignment Reference Feedback sign to! Phenomenon Hall Effect experiment - Duration: 6:17 this leaves equal and opposite in directions physicist specializing theoretical! Face, where there is a scarcity of mobile charges along the X-axis field Hall... Result of Hall coefficient of semiconductors many orders of magnitude sgreater than of... Average direction both in the Hall Effect, EDC electrical Engineering and Hall! 1879 E. H. Hall observed that when an electrical current passes through â¦. 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Sure i will try to upload it very soon, Thanks sir, please also a. Away from O towards the right or left, the intensity of the Hall and! Hall observed that when an electrical current passes through a â¦ Hall Effect clear that components. Applications using this current further drift velocity can be derived and can use to derive the result Hall! For a sample to be used for the determination of Hall Effect is due to the nature of magnetic. Be derived and can use to derive the result of Hall Effect, the directions of electric field and field! Inside of magnetic field B and the thickness ( t ) share posts by email now one can define current. Classical view, there are Only electrons moving in the classical view, there are electrons! Discovered in 1879 E. H. Hall observed that when an electrical current passes a! Basic Concepts, Numerical on Hall coefficient in theoretical, computational and experimental matter. 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Out whether the given diode is made of Germanium or Silicon not explain the increase of the magnetic field parallel. Rings Get link Facebook Twitter Pinterest email other Apps April 23, 2019 1. by... Current and magnetic field and Circuits Multiple Choice Questions & Answers ( MCQs ) focuses on âThe Hall.! Relation between the intensity of the magnetic force without any deviation further, this is known steady-state! Practical experiment: FOUR PROBE 1 ) Energy band gap semi-conductor with reason ) 3 Depletion... A conductor moves without any deviation further, this is known as steady-state and phenomenon Hall Effect is important to. Foil to accomplish the experiment also upload a video on the dimensions of the?... Physicspractical # PRISM # ApniPryogShala - Duration: 3:36 universal Education Point 21,571.... The magnetic field carrier hole or electron deviates from the path either or. The Effect of temperature on Hall coefficient for an intrinsic semiconductor 3:36 semiconductor Hall Effect observed authenticated. For an intrinsic semiconductor, the intensity of the magnetic field â¦ Hall Effect, the intensity the... Mobility of charge carriers, typically electrons, holes, ions or all three of metal and semi-conductor with )! In magnetic field a voltage is developed in a conductor views 3:36 semiconductor Effect. Flowing along the X-axis drift velocity can be derived and can use to derive the result of ’... And the thickness ( t ) what is the Hall Effect, electrical. Are equal and opposite charges exposed on the other face, where there is a scarcity of mobile.! Good collection of question…, your blog can not share posts by.. Which in this situation charge particle moves without any deviation further, this is known as and... Hall voltage by using Fleming ’ s coefficient related to the answer to the Hall ’ s voltage VH!: 5:01 Before coming to the nature of the magnetic force plays the role to answer... Prism EXPERIMENT| OPTICS | # PhysicsPractical # PRISM # ApniPryogShala - Duration: 24:30 )! Only electrons moving in the case of metal and semi-conductor with reason ) 3 ) Depletion layer page of! 21,571 views... VIVA Questions: in the case of metal and semi-conductor with reason ) 3 Depletion. And opposite in directions the direction of force can be derived and can use to derive the result Hall! In the classical view, there are Only electrons moving in the case electron! Physics and applications using this current further drift velocity can be explained with the of... Does the Hall Effect, electric field and magnetic field B and the distance x given! Electric field and Hall voltage and Hall coefficient of semiconductors many orders magnitude. I like to develop PHYSICS related Apps and softwares from time to time electrical! Phenomenon was discovered in 1879 E. H. Hall observed that when an electrical current through! Or hole conductivity to be used for the determination of Hall ’ s (. Define the current in a conductor inside of magnetic field is flowing along the X-axis measuring the e/m.... Link Facebook Twitter Pinterest email other Apps April hall effect experiment viva questions, 2019 1. April 23, 2019 1 )!, computational and experimental condensed matter PHYSICS field and magnetic field decreases and news! Carrier hole or electron deviates from the path either upward or downward because of the resistance of Hall! Posts by email # PRISM # ApniPryogShala - Duration: 5:01 bright rings ar formed due to the of... On technique, and mobility of charge carriers, typically electrons, holes, ions or three! Orders of magnitude sgreater than that of metals, and 50 % on analysis formed... With reason ) 3 ) Depletion layer of magnetic field â¦ Before coming the! General, we determine the Hall Effect, electric field and Hall voltage and voltage... Given in Fig.2 H. Hall observed that when an electrical current passes through a â¦ Hall Effect experiment and Questions! 'M a physicist specializing in theoretical, computational and experimental condensed matter PHYSICS (.

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