PHYS 15200 Mechanics PHYS 15200 Mechanics PHYS 25100 Heat, Electricity and Optics
PHYS 15200 Mechanics
PHYS 15200 Mechanics
PHYS 25100 Heat, Electricity and Optics
PHYS 25100 Heat, Electricity and Optics
Electromagnetic induction
Notes:
You do not have to come to lab this week, but your TA will be available during the lab period to help with this assignment
This lab can be done at home, from a campus computer, or from any other computer with an internet connection.
You will produce a lab report and turn it in through Canvas by the due date in the Course Calendar
I strongly recommend doing the lab early in the week, rather than waiting until it is almost due. If you have computer trouble, you will want to have plenty of time to fix it before the deadline. No excuses!
You may work with your usual lab group or alone, but each student should turn in his or her own lab report.
The web site you will be using is very easy, and works with most browsers, operating systems, etc. If you have any trouble, seek help from one another on CN.
OBJECTIVE
In this experiment, you will be exploring electromagnetic inductions through an online simulation tool developed at the University of Colorado, Boulder.
EQUIPMENT
Computer with internet connection and web browser.
Excel, Numbers, or other graphing software, Word, Pages, or other word processor
PROCEDURE
PART I – Introduction
In this part, you will explore how the simulation works, and practice building circuits and measuring voltages and currents.
Open a new document in Word, Pages, or any other word processing program, and create a new document. This will be your lab report. You may use any format you like, but it should be clear to a reader what you did, and why. Of course, please be sure your name is on it!
Go to the site https://phet.colorado.edu/sims/cheerpj/faraday/latest/faraday.html?simulation=generator. You can use the simulation there by clicking on the image. If you prefer, you may download it by clicking the download link just below the image.
Play around with the simulation on your own a bit. The controls are very easy. You can use a slider to control the water flow to rotate the bar magnet. The RPM of the bar magnet will be shown. You can also change the magnets strength, numbers of the loop (maximum 3). There’s other options available which can help you visualize the magnetic field. You can even check different part of the manifolds, which starts with the very basic experiments of magnetism.
Record your observations in your report. What leads to the motion of the carries inside a conductive circuit? How does the current change with respect to the rotation of the magnets?
PART II – Basic measurements
Change the waterflows to adjust the rotation speed of the magnet. How does the light bulb behave differently as the waterflow approaching its maximum?
Next, switch the light bulb with a Galvanometer (figure 1, the icon besides the light bulb), repeat the operation in step 5, and describe the behavior of the Galvanometer’s needle.
Figure 1
Figure 1
Describe the current flow with respect to the rotation of the magnets, (speed, magnetic pole orientations and etc.)
Summary
Your report should include your measurements and discussions of your methods. Finally, propose an additional experiment you could do in this sim, the methods you would use, and the accuracy of the expected results.
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Electromagnetic induction simulation
Electromagnetic induction simulation
Electromagnetic induction simulation
Electromagnetic induction simulation
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