Observing motional EMF is as easy as plucking a metal guitar string next to a magnet. Okay, you also need an oscilloscope and the lessons learned in this class :)
https://www.youtube.com/watch?v=RvsNgxxmoIQ
Pre-lecture Study Resources
Watch the pre-lecture videos and read through the OpenStax text before doing the pre-lecture homework or attending class.
BoxSand Introduction
Magnetic Induction | Motional EMF, Induced Currents
Key Equations and Infographics
Now, take a look at the pre-lecture reading and videos below.
BoxSand Videos
Required Videos
Suggested Supplemental Videos
OpenStax Reading
OpenStax Section 23.3 | Motional EMF
OpenStax Section 23.1 | Induced EMF and Magnetic Fluc
Fundamental examples
Short foundation building questions, often used as clicker questions, can be found in the clicker questions repository for this subject.
Post-Lecture Study Resources
Use the supplemental resources below to support your post-lecture study.
Practice Problems
BoxSand practice problems
BoxSand's quantitative problems
Recommended example practice problems
- Openstax has practice problems toward the end of each section - Motional EMF , Website Link
- Mathcaptain - Two Motional EMF problems, Website Link
- Practice problem worksheet for Motional EMF, PDF Link
For additional practice problems and worked examples, visit the link below. If you've found example problems that you've used please help us out and submit them to the student contributed content section.
Additional Boxsand Study Resources
Additional BoxSand Study Resources
Learning Objectives
Summary
Summary
Atomistic Goals
Students will be able to...
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YouTube Videos
Pre-Med Academy's video series on magnetism. These two videos introduce the phenomina of induction, and the Lorentz Force.
Pre-Med Academy: Induced Current
Pre-Med Academy: Lorentz Force
Other Resources
This link will take you to the repository of other content related resources for the motional emf.
Simulations
From the PhET discription "Play with a bar magnet and coils to learn about Faraday's law. Move a bar magnet near one or two coils to make a light bulb glow. View the magnetic field lines. A meter shows the direction and magnitude of the current. View the magnetic field lines or use a meter to show the direction and magnitude of the current. You can also play with electromagnets, generators and transformers!"
For additional simulations on this subject, visit the simulations repository.
Demos
For additional demos involving this subject, visit the demo repository
History
Physics Fun
Other Resources
PPLATO is a complete resource with a lot of information, and several practice questions per subject. This webpage covers all of electromagnetic induction, which includes the motional emf.
Boundless online text has a pretty good section on the the motional emf.
Duffy from the University of Boston has a good page on Faraday's law and motional emf.
Other Resources
This link will take you to the repository of other content related resources for the motional emf.
Problem Solving Guide
Use the Tips and Tricks below to support your post-lecture study.
Assumptions
Checklist
Misconceptions & Mistakes
Pro Tips
Multiple Representations
Multiple Representations is the concept that a physical phenomena can be expressed in different ways.
Physical
Mathematical
Graphical
Descriptive
Experimental