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 | … 5. How is Hall’s coefficient related with carrier concentration? People like you keep me going. 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. Hall Effect Experiment and Viva Questions: In the hall effect experiment, we determine the hall voltage and hall coefficient . What is the effect of temperature on Hall coefficient of a lightly doped semiconductor? 15. How does mobility depend on electrical conductivity? Hall effect is important and to explain it the direction of the magnetic force plays the role. 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. People like you keep me going. viva questions on newtons rings Get link Facebook Twitter Pinterest Email Other Apps April 23, 2019 1.) Like to share my knowledge in Physics and applications using this Blog and a YouTube channel. 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). Respected sir , please also upload a video on the experiment of measuring the e/m ratio. First,we understand what is Hall voltage? 17. In the classical view, there are only electrons moving in the same average direction both in the case of electron or hole conductivity. Hall voltage is zero when the semiconductor is A. Extrinsic B. Intrinsic C. 'P' type D. None of the above View Answer A.Extrinsic Your Comments Your name: Your … 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. Why Can code in most of the popular languages. The digital voltmeter and ammeter, to measure the voltage and current. Van Der Pauw Theorem 3. that of metals? By using this current further drift velocity can be derived and can use to derive the result of Hall Voltage. This cannot explain the opposite sign of the Hall Effect observed. Hall E ect in Semiconductor 2. The separation of charge establishes an electric field that opposes the migration of further charge, so a steady electrical potential is established for as long as the charge is flowing. 🙂 Reply … A potential difference of 10 volts is applied across the edges. 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. This set of Electronic Devices and Circuits Multiple Choice Questions & Answers (MCQs) focuses on “The Hall Effect”. Instrument Manuals This lab will be graded 30% on theory, 20% on technique, and 50% on analysis. 14. Finally, in October, 1879, Hall measured the lateral potential difference successfully. 7. What is the principle of the Hall effect ?”When we place a current-carrying semiconductor specimen in the presence of a uniform … Read more Hall Effect Experiment and 10 Viva Questions 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. I'm a physicist specializing in theoretical, computational and experimental condensed matter physics. Hall Effect Multiple Choice Questions Answers 36. Post was not sent - check your email addresses! What is Hall Effect, What are the applications of Hall Effect, EDC Electrical Engineering. What is the principle of the Hall effect ?”When we place a current-carrying semiconductor specimen in the presence of a uniform magnetic field, a potential difference creates between the two faces. Sorry, your blog cannot share posts by email. For more information, see the Advanced Lab Syllabus. Thanks for your comment. In what units is Hall’s coefficient measured in? What is Voltage Source in Electric Circuits? Is it possible to measure Hall’s coefficient for metals? 3 thoughts on “ Viva Questions for HALL Effect ” Manish February 8, 2017 Thanks dear they are very useful … Reply Manas Sharma February 8, 2017 Thanks for your comment. INSIF ELECTRONICS 61,150 views 3:36 Semiconductor Hall Effect - Basic Concepts, Numerical on Hall Effect, Hall Coefficient - Duration: 5:01. 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. 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. 8. The two forces are equal and opposite in directions. The Hall Effect experiment is explained very briefly (I just tried to make it brief). 1. In 1879 E. H. Hall observed that when an electrical current passes through a … Theory: If a current carrying conductor placed in a perpendicular magnetic field, a potential difference will generate in the conductor which is … The charge carrier hole or electron deviates from the path either upward or downward because of the magnetic force. (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. Notify me of follow-up comments by email. StudyYaar. Experiment Questions: 1.Experimently find out whether the given diode is made of Germanium or Silicon. Q.What is Hall Effect? On what factors does the sign of the Hall’s coefficient depend? In the Hall Effect, the directions of electric field and magnetic field are parallel to each other. https://apniphysics.com/expt-3hall-effect-experiment-detail-formulation-and-viva-questions-and-demonstration/. What are some of the requirements for a sample to be used for the determination of Hall’s Coefficient? 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). 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. 16. Hall Effect Experiment and Viva Questions: In the hall effect experiment, we determine the hall voltage and hall coefficient. 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. 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. 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 20… Hall Effect Experiment and 10 Viva Questions Now, after making it clear that what components we are using in this experiment, then we start to take the observations. This phenomenon was discovered in 1879 by … Apparatus :- 1) Gauss meter with probe 2 Given V H = 0.05 volts, σ = 2.5 x 10-2 Ω-cm. Dark and bright rings ar formed due to the presence of air film when Plano convex lens is … 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 ? Do the holes actually move? 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 … Now one can define the current which in this case is flowing along the X-axis. When such a magnetic field is absent, the charges follow approximately straight, ‘line of sight’ paths between collisions with impurities, phonon, etc. Good collection of question…, Your email address will not be published. Required fields are marked *. 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). MOST EXPECTED PHYSICS VIVA QUESTIONS FOR PHYSICS PRACTICAL EXPERIMENT : FOUR PROBE 1) Energy band gap? https://apniphysics.com/how-to-observe-hall-voltage-in-the-physics-lab-by-using-hall-effect-experiment/. , can you provide answer for these questions. Theory Procedure Self Evaluation Simulator Assignment Reference Feedback Sign in to view the content Only an authenticated user can view this page. Define hall coefficient. Why is Four-Probe method preferred over other … Universal Education Point 21,571 views ... VIVA QUESTIONS ON PRISM EXPERIMENT| OPTICS | #PhysicsPractical #Prism #ApniPryogShala - Duration: 6:17. Page 1 of 6 P.S. Get the latest information and technology news in your inbox. 4) N- and p The Hall Effect 1 Background In this experiment, the Hall Effect will be used to study some of the physics of charge transport in metal and semiconductor samples. 1. should the sample be thin? View manassharma24059a12a’s profile on LinkedIn, View manassharma07’s profile on WordPress.org, Chemistry Hons Previous Year Question Papers, English Honors Previous Year Question Papers, Math Honors Previous Year Question Papers, Physics Honors Previous Year Question Papers, 3D Trajectory Animated using Matplotlib (Python), 3D Line or Scatter plot using Matplotlib (Python) [3D Chart], Animated plots using Matplotlib (Python) [SINE WAVE ANIMATION], Performing SYMBOLIC/ANALYTICAL Integration or Differentiation using PYTHON [TUTORIAL], Solving a System of Linear Equations using Python. Follow the video tutorial below for full information. PhD researcher at Friedrich-Schiller University Jena, Germany. Conduct the experiment for obtaining the forward bias VI characteristics of the given diode.if the cut in voltage is … Thank You dear Prince, sure I will try to upload it very soon, Thanks sir,. 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 … 9. In this situation charge particle moves without any deviation further, this is known as steady-state and phenomenon hall effect. This effect is the famous Hall Effect… Why not subscribe to our email list? Ans.) Hall Effect Experiment – [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 … It was discovered by Edwin Hall in 1879. How are they related? 12. therefore, he suggested that Hall repeated the experiment. Hall Effect Experiment - Duration: 3:36. 2) Relation of resistivity and T? Comments: Submit … ..... Our Mantra: Information is Opportunity. 4. 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 Band… Read More Hall effect experiment:- Determination of charge carrier density.. The Hall Effect is due to the nature of the current in a conductor. 6. When a current carrying conductor placed inside of magnetic field a voltage is developed in a direction perpendicular to both current and magnetic field. 3. Why is the Hall coefficient of semiconductors many orders of magnitude sgreater than The above statement is a) True b) False View Answer In general, we ask our students to find the Hall Voltage and Hall Coefficient. What are Newton rings ? Define Hall angle. Current consists of the movement of many small charge carriers, typically electrons, holes, ions or all three. 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. Hall Effect Experiment and 10 Viva Questions Best-known Magnetic Susceptibility Experiment 20… Michelson Interferometer Experiment 15 Viva Questions Melde Experiment Viva Questions BSc Planck's Constant Experiment Excellent 15 Viva Questions Which type of charge has greater mobility? 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 … 2 Fig.2 If we move away from O towards the right or left, the intensity of the magnetic field decreases. A.When a current carrying conductor is placed in a magnetic field mutually perpendicular to the direction of current a potential difference is developed at right angle to both the magnetic and electric field.This phenomenon is called Hall effect. 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. Follow the video tutorial below for full information. 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. Two solenoids, Constant current supply, Four probe, Digital gauss meter, Hall effect apparatus (which consist of Constant Current Generator (CCG), digital milli voltmeter and Hall probe). Your email address will not be published. This leaves equal and opposite charges exposed on the other face, where there is a scarcity of mobile charges. A graph showing the relation between the intensity of the magnetic field B and the distance x is given in Fig.2. 2. Please login if … Ans.) Hall Effect And It's Importance - Duration: 24:30. Online Teaching: A Master Class Course for Teachers, Solid State Physics for Graduate Students, READ ALSO: Determination of Magnetic Susceptibility Experiment, Hall Effect Experiment and 10 Viva Questions, Explanation of Anomalous Zeeman Effect | Atomic Physics. How is Hall’s coefficient related to the Hall’s Voltage (VH) and the thickness(t)? 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. 11. 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. Explain the increase of the resistance of the sample with the increase in magnetic field. 1. What is the sign of Hall Coefficient for an intrinsic semiconductor? I like to develop Physics related apps and softwares from time to time. 10. Dene carrier concentration, electrical conductivity, and mobility of charge carriers. Hall effect, electric field and hall voltage by using Fleming’s Left-hand rule explained here. Before coming to the answer. [1][2] A Hall effect can also occur across a void … It was discovered by Edwin Hall in 1879. Does the Hall coefficient depend on the dimensions of the sample? At this time, Hall used thin gold foil to accomplish the experiment. It helps a lot.. 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