Electromagnetic Induction

docx

School

University of Phoenix *

*We aren’t endorsed by this school

Course

560

Subject

Physics

Date

Dec 6, 2023

Type

docx

Pages

3

Uploaded by jthompson877689

Report
Eli Thompson Electromagnetic Induction Purpose: To investigate the evidence that an electric current produces a magnetic field and changes the magnetic field on an electric current. Question: What evidence shows that an electric current produces a magnetic field? What changing magnetic field has an electric current? Hypothesis: 1. A magnetic field will be produced if an electric current exists. a. Independent variable: Strength of current b. Dependent variable: Strength of Magnetic Field c. Controls: Same wire, nail, and measuring device. 2. An electric current will be produced if a magnetic field changes. a. Independent variable: Change in Magnetic Field b. Dependent variable: Current produced c. Controls: Same wire, magnet, and ammeter Investigation 1: Materials Copper wire, metal nail, 12-volt lantern battery, 9-volt battery, wire cutters, toggle switch, electrical tape, paper clips, and a compass Procedure: 1. Cut a wire and attach one end to the positive output of the toggle switch. 2. Tie the wire around at least 50 times the nail to create a solenoid. 3. Once the wire is around the nail, tape the wire to the negative terminal of the 12V battery. 4. Cut a small piece of wire to connect the positive terminal of the battery to the negative the terminal of the toggle switch. 5. Turn on the switch. 6. Put paper clips close to the nail. 7. Repeat the experiment with the 9-volt battery. Repeat the experiment with the 9-volt and 12- volt batteries arranged in series. 8. Know how to arrange batteries in series, check out this project that explains how). Experimental group: current flowing through the nail with coiled wire
Control group: no voltage applied. Results: The current going through the circuit will make the nail magnetic and attract the paper clips. The 12-volt battery will create a stronger magnet than the 9-volt battery. There is a direct relationship between magnetic field strength and current because the magnet's power increased as the current was changed from 9 volts to 12 volts. The right-hand rule represents the current flow in the direction the thumb is pointing, and the direction of the fingers will describe the magnetic field direction. It means when the current changes direction, it also changes the direction of the magnetic field. The current flows from the negative end through the wire to the positive end of the battery, which can help determine the direction of the magnetic field. Once the toggle switch is turned on, the current will flow from the battery's negative terminal around the circuit to the positive terminal. When the current passes through the nail, it creates a magnetic field by moving the compass, which is attracted to this magnetic field and no longer points north. The 12-volt battery produces a larger voltage, creating a higher current for a circuit of the same resistance. The larger the current will make the magnetic field attract more paper clips using a larger voltage. Investigation 2: Materials Magnet, wire, and an ammeter Procedure: 1. Move the magnet through a coil of wire 2. Detect the current flowing in the coil using a sensitive ammeter. 3. Nothing will happen if the magnet is still inside the loop. Experimental group = coil of wire and magnet Control group = coil of wire Results: While this investigation is straightforward, the magnet and some wire loops demonstrate that a changing magnetic field creates a current. To change the strength of the magnetic field, move the conductor in/out of the magnetic field, change the distance between a magnet and the conductor, or change the loop located in the magnetic field. No matter how the variation is achieved, the induced current is the same result. The strength of the current will vary in proportion to the change of the magnet, and there is a direct relationship between the magnetic field and current because as one increases, this can only come from the difference in this magnetic field. The direction of the current can be determined by considering the induced electric current will flow in such a way that it generates a magnetic field that opposes the change in the area that caused it. If the applied magnetic field increases, the current in the wire will flow so that the magnetic field generated around the wire will decrease the applied magnetic field. There must be a change in the magnetic field, so no current is produced if the magnet remains.
Conclusion: My hypotheses are supported by the experiment, as electricity and magnetism are essentially two aspects of the same thing. A changing electric field creates a magnetic field, which makes an electric field. When current is passed through a nail wrapped in wire, it will indicate the presence of a magnetic field circling the wire. A magnet and wire loops demonstrate the reverse of the above: a changing magnetic field creates a current known as induction. By moving a magnet through a coil of wire, current flow can easily be detected using a sensitive ammeter, but nothing will happen if the magnet is still inside the loop. Only currents give rise to magnetic fields. Possible errors in this lab experiment could be mistakenly creating the electromagnet in the first experiment or moving the magnet over the wire in the second.
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 II Lab Report #11.docx
Copy of Lab - Momentum.docx.pdf
90A0B81A-30A8-4251-8B9E-2E8AE30448FF
745AA36B-CC75-4300-943C-7D6EF84AA365
PHY 150 Project Two Case Material Evaluation Report Template (2).docx
Microsoft Word - Phys 30 Practice Test Momentum.docx.pdf
PH01_Mapping Electric Fields_rev.pdf
Lab 1-Boyle's Law.pdf
Lab 3- Thermodynamics Wk 1&2.pdf
Lab Atwoods Machine_Final.pdf
Lab The Ballistic Pendulum FINAL.pdf
PHYS-102 module 2 chapter 2 quiz.docx
Recommended textbooks for you
Text book image
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Text book image
Physics for Scientists and Engineers with Modern ...
Physics
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Text book image
Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill
Text book image
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Text book image
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
Text book image
University Physics Volume 2
Physics
ISBN:9781938168161
Author:OpenStax
Publisher:OpenStax
SEE MORE TEXTBOOKS
Recommended textbooks for you
Text book image
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Text book image
Physics for Scientists and Engineers with Modern ...
Physics
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Text book image
Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill
Text book image
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Text book image
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
Text book image
University Physics Volume 2
Physics
ISBN:9781938168161
Author:OpenStax
Publisher:OpenStax
SEE MORE TEXTBOOKS