It was ensured that … Theory The magnetic field of Earth resembles the field of a bar magnet. Lab MFS ‐ Magnetic field in a solenoid ... discussion. In a magnetic field, each spectral line is split into two slightly separated "versions" by the Zeeman effect . •To use small magnetic compasses to trace out the magnetic field lines of a single bar magnet on a large sheet of paper. Which direction is the torque? Magnetic Fields 7.1 Purpose Magnetic fields are intrinsically connected to electric currents. 5.2. Background information: Initial hypothes i s: Magnetic field strength will be proportional to the strength of the current running through a straight wire and inversely proportional to the distance from the wire. Spin Coherence and Spin Control. 8, is the experimental value of Bh in agreement with the NGDC value? As with all physics laboratory experiments, one must be careful to use the appropriate units. E. Use the "manual graph" file to plot a graph of B vs. x (magnetic field on the vertical axis. Sample Lab Conclusion Paragraph. When two of these magnets are close to each other the force can be very large, and the force changes rapidly with the distance. Science Workshop Magnetic Field of a Solenoid dg ©1996, PASCO scientific P52 - 1 Lab 7: Magnetic Field of a Solenoid PURPOSE The purpose of this laboratory activity is to measure the magnetic field inside a solenoid and compare the magnetic field to a theoretical value based on the current through the solenoid. At the end of the experiment we will be able to calculate an experimental value for µ o, the permeability of free space. The purpose of this experiment is to mea-sure the horizontal component of the earth’s magnetic fleld BH using a very simple apparatus. Introduction All magnetic fields arise from the motion of electric charges. Print out a graph for your report. This magnetic field, and the inductive reactance that arises from it, is amplified by the presence of the iron core in the coil, so that the electrical reactance (combined with the resistance) becomes so great that an inadequate current supply reaches the lamps. NOTE: In this lab you will work with very strong permanent magnets. Field lines cannot cross. Homework The horizontal component of the Earth's magnetic field, B h Magnets are used today to image parts of the body, to explore the mysteries of the human brain, and to store data for computers. The purpose of this lab is to investigate magnetic fields around simple geometric configurations of wires carrying current. Report and Analysis on the z-axis: 1. Therefore, a current-carrying wire will experience a force when placed in a magnetic field. Field lines form continuous, closed loops. Lab Magnetic Field in a Solenoid. In the lab, we discovered that the relationship between the magnetic field and the current in a solenoid is proportional to one another such as when the magnetic field increases, the current will increase too and vice versa. View Lab Report - Magnetic Field in Current Carrying Coil lab report.docx from ELECTRICAL 14 at Institute of Space Technology, Islamabad. 2. PHYS 1493/1494/2699: Exp. The apparatus was set up as shown in the diagram, with the magnet on the scale. Note: the NGDC values of Bh and Be are given in units of nT and should be converted to T. 11.According to the criterion given in Appendix 2, i.e. The magnetic field produced by the magnets in this setup is either pointing up, towards the coil, or down towards the benchtop. This !induced current itself creates a magnetic field. Referring back to the data, we were able to make that conclusion because each time the current rose, the magnetic field did. To do so we will use the Drude theory of conductors. Your value should, however, fall between 0.04 mT and 0.06 mT. The presence of these magnetic fields can be detected and measured by the force they exert on other magnetic materials and current-carrying conductors. Experiment 8 ~ Magnetic Field Induced by a Current-Carrying Wire Objective: In this experiment you will investigate the interaction between current and magnetic fields. Theory The Lorentz force law, Equation 1, tells us that a charged particle experiences a force in an area where there exists an electric or magnetic field. Magnetic fields from single and multiple current loops The magnetic field due to a single circular current loop at an arbitrary point in space is The measure-ment involves combining the results of two separate experiments to obtain BH. 98 Experiment 18: Earth’s Magnetic Field Advance Reading Text: Magnetic field, vectors, right-hand rule for a wire loop, resistivity. Lab 5 - Force on a Wire Introduction A stationary or moving electric charge will experience a force when placed in an electric field.On the other hand, an electric charge has to be moving to experience a force due to a magnetic field.A current in a wire is due to moving electrons. Consult the TA, and make sure that you understand the cal-ibration. Make sure you put all wires away. REPORTS AND ANALYSIS e Earth's Local Magnetic Field: 1. magnetic field if no other magnetic fields are present. ! Does it? To build your DC motor properly will take careful thought and attention to details. In thi Post-Lab Questions Sheet of Paper (Any Kind Iron Filings Procedure 5. The spin-up and spin-down electrons in a given atomic energy level have slightly different energies (and hence spectral frequencies) depending on whether they align with or against the local magnetic field. Laboratory #6 Magnetic Fields Objective This experiment has 2 parts: (1) you will map the magnetic fields around a bar magnet and a current-carrying coil, and (2) you will measure induced currents using a bar magnet and a galvinometer. Field strength is proportional to the line density. The calibration of the sensor (when the switch is set to the radial position) is marked on the sensor controller [1V (voltmeter reading) = 8:03£10¡3 Tesla]. Using a Helmholtz coil, a calibration constant is determined that is applied to deflection values obtained by a ballistic galvanometer. Using Eq. Ronaldo Degazon Saturday 19/01/13 Physics Lab #18 Title: Aim: To investigate the effect of separation of magnets on the magnitude of magnetic force between them. Figure 2 Earth’s magnetic pole and compass heading. Given that a compass points toward Earth's geographic North Pole which is actualy field line Hint: The compass is helpful to visualize the Seld ines hand If the paper you Ee . Highlight “F(Total Intensity)”, and click on “Compute Magnetic Field Components.” Report the value of Be in Table 3. during this lab. this laboratory, you will use a Hall probe to study the magnetic field distributions produced by both a Helmholtz coil and a solenoid. 2: Magnetic Field Lines in Post- to operate moving parts. Lab Report 2: Based on the figure, in which direction is the magnetic moment -⃗? x = 100 mm. This is a simple classical model, and many of its concepts extend to the quantum case. The determined values … The report is used to demonstrate what has been learned, and it will provide a way for other people to see your process for the experiment and understand how you arrived at your conclusions. Magnetic fields of astronomical objects are measured spectroscopically. The lab's research priorities are determined by its user community. Materials 1 power supply ; 1 metal slinky – stretch to about 120 cm. Magnetic Field of Current Carrying Coil Department name, Printer Friendly Version: In this lab we will investigate the magnetic field with a metal slinky with the use of a Hall probe. The lab’s materials-related science drivers are: Quantum Matter. Apparatus: 2 round magnets, an electronic balance, meter ruler, retort stand Procedure: 1. 4. The strength of the magnetic field may be altered by varying the number of horseshoe magnets in the magnet assembly. Lab 6: The Earth’s Magnetic Field 1 Introduction The earth just like other planetary bodies has a mag-netic fleld. Isolated c onclusion from a report on mapping magnetic fields. The amount the rider has moved along the scale is directly proportional to the force felt by the conductor in the field. E05-1. For example, waving a permanent magnet near a loop of wire!will induce an electric current in the loop. As depicted in Figure 2, the North pole of the compass points towards the South magnetic pole of the Earth which is very close to the Earth’s geographic North Pole. This may … The broadly challenging manifestations of quantum phenomena in materials properties, in which magnetic fields change electronic correlations and, thus, materials properties. *When finished with your lab clean up your lab station. Lab 7 - The Magnetic Field of a Long, Straight Wire Introduction Magnetic fields are produced by current-carrying conductors. Use a sketch as part of your explanation. 4 – e/m of the electron 2 Introduction Our first measurement of atomic structure Charge-to-mass ratio of electron: Motivation and history of the first e/m measurement Consequences Thomson’s experiment The physics behind the experiment: The magnetic field generated by a single loop Charged particle in constant magnetic field MAGNETIC FIELDS AND FORCES Lab V - 1 Magnetism plays a large part in our modern world's technology. ... Due to electric circuits in the laboratory, the presence of magnetic materials, etc., this total field for BE may or may not be the same as the Earth’s field (1 BE should be about 4.84×10−5 T or 0.0484 mT). Where F is the force, B is the magnetic field strength, I is the Current, and L is the length of the conductor in the field. The physical mechanism of the Hall effect is discussed in Appendix I. Lab 7.Magnetic Fields Goals •To visualize the magnetic fields produced by several different configurations of simple bar magnets using iron filings. Magnetism also allows us to explore the structure of the Universe, the atomic structure of materials, and the quark structure of elementary particles. Eq. ... –a phenomenon named after the physicist Edwin Hall, who first observed and reported it in 1879. 3. Nevertheless, working with these magnets can be dangerous. (The direction of the magnetic field may also be altered.) The calibration is necessary to convert the voltmeter readings into magnetic fleld units. Magnetic fields can be pictorially represented by magnetic field lines, which have the following properties: 1. CSEC Physics Lab - Magnetic Force 1. When an electric field exists in a metal, electric charges drift in the direction of the electric field. Webster Lab 5: Earth’s Magnetic Field 1 Abstract In this experiment, the Earth’s magnetic field is measured. Last modified on 17 June 2019 back to top What's the MagLab? Record the magnetic field at each position. The field is tangent to the magnetic field line. The magnets are enclosed in the experimental setup so that the magnetic field outside of the setup is not that strong. A lab report describes an entire experiment from start to finish, outlining the procedures, reporting results, and analyzing data. Whenever a current flows through a wire, a magnetic field is produced in the region around the wire. Lab Preparation Magnetic induction refers to phenomena where!a changing magnetic field induces an electric!field, and possibly an electric current or a volt!age in a nea rby conductor. Deflection of an Electron in a Magnetic Field Purpose In this lab, we use a Cathode Ray Tube (CRT) to measure the effects of an electric and magnetic field on the motion of a charged particle, in this case the electron. 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