LAB 4.docx

pdf

School

Texas A&M University *

*We aren’t endorsed by this school

Course

217

Subject

Physics

Date

Dec 6, 2023

Type

pdf

Pages

Uploaded by CoachFlower10294

LAB 4: M AGNETIC F IELDS Stephen Adcox, Jake Mucha, Yildiz Ulugun Texas A&M University College Station, TX 77843, US. Abstract For this lab, our group experimented with the theory behind magnetic fields and how different materials affect them. As a group, we used the CNC machine with a Hall effect probe to find data from the magnet to use later for the lab report. In the lab, we will compare and contrast the magnetic fields of the magnet, the magnet with steel, and the magnet with aluminum. Knowing the direction of magnetic field lines is crucial for this experiment. Keywords: Magnet, Neodymium, Magnetic Field, Hall Effect 1. Introduction The magnetic field is utilized very often and has a wide range of applications. For Lab 4:Magentic Fields, we were focused on investigating and learning more about how different materials affect magnetic fields. We have used different types of bars such as aluminum and steel to observe the different types of magnetic fields generated by the magnet. While doing this we gathered all the data by using the CNC machine with a Hall effect probe. In performing this experiment our main goal is to better understand the complicated relationships between various materials and the magnetic field under various circumstances. 2. Experimental Procedure The initial step of the experiment was to set up the software required to maneuver the probe. For that, the magnet was placed in the center of the board. The Hall effect probe was moved above the magnet and secured in place. Any adjustments to the X, Y, and Z data coding for the scan to be conducted were completed at this time. For the first scan, there were no metal bars present on the board. From there the scan of the magnetic field was conducted. This scan is just to find the direction and orientation of the magnetic field with no interference. For the second scan, the aluminum bar was placed with the end in the center of the magnet to make a T shape. From there the second scan was conducted to see the interference of the magnetic field with a nonmagnetic conductor present. For the third scan, the aluminum bar was removed and the steel bar was placed in the same place and orientation as the aluminum bar. Holding down the magnet while moving the steel bar next to it was critical to not move the magnet on the board. From there the third scan was conducted to see the interference of the magnetic field with a magnetic conductor percent. From this point on all data has been collected and the data analysis begins. The magnetic fields were plotted to see how the magnetic field changed from having no interference to having a nonmagnetic conductor present to a magnetic conductor present. Finally, the conclusion was summarized by determining how the presence of aluminum and steel bars affects the magnetic field. 3. Results and Analysis Using the scanning device provided the magnetic field and direction were recorded in a grid pattern over the magnet and bars. This grid was then graphed into the graphs shown below in Image 2,4,6 . Image 1 is the visual representation of the grid in Image 2 . This is the same for Images 3 and 4 , along with Images 5 and 6 . The grids have the direction and magnitude of the magnetic field color coded to the key on the right side of the graphs. The magnetic field is in uT.

Image 1: Magnet Image 2: Magnetic Field for Magnet only Image 3: Magnet and Aluminum Bar Image 4: Magnetic Field for Magnet and Aluminum Bar Image 5: Magnet and Steel Bar Image 6: Magnetic Field for Magnet and Steel Bar

As seen in each grid, the magnetic field moves from the top to the bottom, then loops around the outside. This means that the north pole of the magnet is on the bottom side and the south pole is on the top side. As seen in Images 2 and 4 the aluminum bar has little effect on the magnetic field. The magnetic field with just the magnet and the magnetic field with the aluminum bar present are almost identical. This is because aluminum does not conduct a magnetic field when near a magnet. The same can not be said for the magnetic field when the steel bar is present. Since steel will conduct the magnetic field, the steel bar will have a north and south magnetic pole just like the magnet. As seen in the grid the magnetic north pole for the steel bar is the same as the magnets. The steel bar has its north pole at the bottom and the south pole at the top and sides of the bar. 4. Conclusions Several observations were made during this experiment. First, we observed that different materials such as aluminum and steel bars can cause a change in the magnetic field. While performing the experiment our team discovered that the aluminum bar graph ( Image 4 ) was almost identical to the one with only the magnet present. This suggests that aluminum does not significantly conduct with magnetic fields. The results indicate that the aluminum bar has little effect on altering the magnetic field's direction or magnitude. This is mainly because aluminum has a crystalline structure and reflects no magnetic properties because it is as permissible as air. On the other hand, the graph for the steel ( Image 6 ) bar was different from the graph with only the magnet present ( Image 2 ). Since steel is magnetic, it conducts the magnetic field, resulting in the steel bar developing its north and south magnetic poles. The steel bar extended the magnetic field and changed the magnetic field lines as shown in the graphs. This is because the molecules in the steel bar all align themselves with the magnetic field to create the north and south poles as mentioned. As seen in the graphs the north pole of the magnet is facing down and the south pole is facing up. This is because the magnetic field leaves from the bottom and enters through the top. After performing this experiment and collecting all of our data, we were able to gain a deeper understanding of the way magnetic fields react to different types of materials.

Your preview ends here

Eager to read complete document? Join bartleby learn and gain access to the full version

Access to all documents
Unlimited textbook solutions
24/7 expert homework help

Related Documents

Physics Lab 1 RD Lab Report.pdf

final report.docx

Draft report.docx

SPH3U Lesson Assignment 6 (docx).docx

SPH3U Lesson Assignment 5 (docx).docx

SPH3U Lesson Assignment 3 (docx).docx

Ch_9.docx

Lab 1 report PHY136 6.pdf

Screenshot 2023-11-29 at 2.28.14 AM.png

EXTENDED ESSAY.docx

Lab1-Phys316.docx

Week7_Torque_Written 2.pdf

Recommended textbooks for you

Glencoe Physics: Principles and Problems, Student...

Physics

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Glencoe/McGraw-Hill

Physics for Scientists and Engineers: Foundations...

Physics

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Cengage Learning

College Physics

Physics

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:OpenStax College

University Physics Volume 2

Physics

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Principles of Physics: A Calculus-Based Text

Physics

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Cengage Learning

Physics for Scientists and Engineers, Technology ...

Physics

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Cengage Learning

SEE MORE TEXTBOOKS

Recommended textbooks for you

Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
University Physics Volume 2
Physics
ISBN:9781938168161
Author:OpenStax
Publisher:OpenStax
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning