About

This simulation traces the flux linkage and corresponding emf generated by a rectangular coil rotating along an axis perpendicular to a uniform magnetic field. One is able to modify the angular frequency to see the effect on the frequency and peak emf generated.

 

Translations

Code	Language		Translator	Run

Credits

Tan Seng Kwang

http://iwant2study.org/lookangejss/05electricitynmagnetism_22electromagneticinduction/ejss_model_faradayslaw/faradayslaw_Simulation.xhtml

Briefing Document: Faraday Law JavaScript HTML5 Applet Simulation Model

1. Overview:

This document reviews a specific interactive simulation model focused on Faraday's Law of electromagnetic induction. The simulation, created by Seng Kwang Tan, is a JavaScript HTML5 applet hosted by Open Educational Resources / Open Source Physics @ Singapore. It’s designed to be used on a variety of devices, including computers, tablets, and smartphones. The primary goal is to provide a visual and interactive way to understand how a changing magnetic flux induces an electromotive force (EMF).

2. Main Theme: Faraday's Law of Electromagnetic Induction

The core theme revolves around demonstrating Faraday's Law. The simulation specifically focuses on:

• Flux Linkage: It visually represents how the magnetic flux changes as a rectangular coil rotates within a uniform magnetic field.
• Induced EMF: It shows the connection between the changing flux and the electromotive force (EMF) generated in the coil.
• Angular Frequency: Users can manipulate the angular frequency of the coil’s rotation to observe its impact on the frequency and magnitude of the induced EMF.

3. Key Features and Functionality

• Interactive Simulation: The applet is embedded in a webpage using an iframe, making it directly accessible and interactive. Users can adjust simulation parameters and observe the resulting changes in real time.
• Visual Representation: The simulation provides a graphical representation of the rotating coil, the magnetic field, and the resulting induced EMF. This visualization enhances understanding of the abstract concepts.
• Adjustable Parameters: Users can modify the angular frequency of the rotating coil. This functionality allows for exploration of the relationship between angular frequency and induced EMF. The description states: "One is able to modify the angular frequency to see the effect on the frequency and peak emf generated."
• Accessibility: The simulation is designed for broad accessibility, working across multiple platforms like Windows, macOS, Linux, and mobile devices (Android and iOS). This versatility makes it suitable for various educational contexts.

4. Educational Applications:

• Secondary Education: The applet is explicitly categorized for “Secondary” level electromagnetism, suggesting its relevance for high school physics education.
• Conceptual Understanding: The simulation is designed to illustrate abstract concepts through a clear and interactive model. It helps learners move beyond formulas and grasp the underlying principles of electromagnetic induction.
• Experimentation: By changing parameters, users can “experiment” with the simulation to observe how different variables affect the induced EMF. This interactivity promotes a more active and engaged learning experience.
• Open Educational Resource: The applet is part of a larger collection of Open Educational Resources, meaning that it is freely available for educational use. This promotes accessibility and the sharing of high-quality learning materials.

5. Technical Details:

• Technology: The simulation is developed using JavaScript and HTML5. This choice of technology ensures cross-platform compatibility without requiring specific plugins.
• EjsS (Easy JavaScript/Java Simulations): The simulation is created with the "EasyJavaScriptSimulation" tool, indicating a user-friendly development environment.
• Embeddable: The simulation is designed to be easily embedded on other websites via an iframe code:
• <iframe width="100%" height="100%" src="https://iwant2study.org/lookangejss/05electricitynmagnetism_22electromagneticinduction/ejss_model_faradayslaw/faradayslaw_Simulation.xhtml " frameborder="0"></iframe>

6. Credits and License

• Creator: Tan Seng Kwang is credited for the development of the simulation.
• License: The content is licensed under the Creative Commons Attribution-Share Alike 4.0 Singapore License. This permits sharing and adaptation with attribution. For commercial use of the underlying EasyJavaScriptSimulations library, contact the stated email address and view the link provided.
• Platform: The simulation is hosted by "Open Educational Resources / Open Source Physics @ Singapore," a hub for sharing educational simulations and resources.

7. Related Resources:

The source page links to a huge array of other educational resources related to science and math that have been developed in the same project. Examples include:

• Simulations on various physics concepts (mechanics, electromagnetism, optics, etc.).
• Math simulations for primary and secondary school.
• Interactive modeling tools.
• Resources for teachers, including workshop materials.

8. Conclusion

The Faraday Law JavaScript HTML5 Applet Simulation Model is a valuable educational resource for understanding electromagnetic induction. Its interactive and visual nature, coupled with broad accessibility, makes it an effective tool for students and educators. It forms part of a much broader collection of simulation based teaching resources that have been created by a group of Singaporean educators who have been recognised by the Singaporean Ministry of Education for their contributions to teaching. The simulation is easy to implement in online teaching resources.

 

Faraday's Law Study Guide

Quiz

1. What is the primary focus of the Faraday's Law simulation described in the provided text?
2. How does the simulation allow users to observe the effects of changes in angular frequency?
3. What type of coil is used in the simulation, and how does it interact with the magnetic field?
4. According to the description, what physical phenomenon does the simulation trace?
5. Besides the angular frequency, what other variable can be modified within the simulation to affect the induced emf?
6. What is the purpose of the included iframe code?
7. What platforms are compatible with this simulation model?
8. Who is the author of the simulation and where can more of their work be found?
9. What is meant by "flux linkage" in the context of the simulation?
10. What is the relationship between flux linkage and electromotive force (emf) according to Faraday's Law, as implied by the simulation?

Quiz Answer Key

1. The simulation focuses on tracing the flux linkage and corresponding electromotive force (emf) generated by a rotating rectangular coil within a uniform magnetic field.
2. By modifying the angular frequency, users can directly observe how changes in rotational speed affect both the frequency and peak electromotive force (emf) generated.
3. The simulation employs a rectangular coil that rotates along an axis perpendicular to the magnetic field, inducing an emf as the magnetic flux through the coil changes.
4. The simulation traces the dynamic relationship between magnetic flux linkage and the resulting induced electromotive force (emf) based on Faraday's Law.
5. While the provided text specifically mentions angular frequency as a modifiable variable, the implied interaction is based on changes to the magnetic field experienced by the coil through rotation.
6. The iframe code is designed to embed the Faraday's Law simulation model directly into a webpage, allowing users to interact with the simulation online.
7. The simulation is designed to be compatible with various platforms including Android/iOS devices, Windows/MacOSX/Linux systems, and Chromebook laptops.
8. Seng Kwang Tan is the author of the simulation. More of their work can be found at http://iwant2study.org/lookangejss/05electricitynmagnetism_22electromagneticinduction/ejss_model_faradayslaw/faradayslaw_Simulation.xhtml
9. "Flux linkage" refers to the total amount of magnetic flux passing through a coil of wire, calculated by multiplying the magnetic flux by the number of turns in the coil.
10. Faraday's Law states that the electromotive force (emf) induced in a loop is proportional to the rate of change of magnetic flux linkage through the loop.

Essay Questions

1. Discuss how the Faraday's Law simulation demonstrates the relationship between mechanical motion and the generation of electrical energy. Include in your answer an explanation of how angular frequency impacts the induced emf.
2. Explain the fundamental principles of Faraday's Law of induction, using examples from the simulation to illustrate the key concepts.
3. Analyze the educational value of the Faraday's Law simulation as a learning tool for students studying electromagnetism and describe potential ways it could be used in a classroom environment.
4. Based on the description of the simulation, discuss the practical applications of Faraday's Law and how the simulated concepts relate to real-world devices such as electric generators.
5. Compare and contrast the simulation of Faraday's Law with other simulations or experimental methods you know about for teaching electromagnetism, and discuss the unique benefits and drawbacks of each approach.

Glossary of Key Terms

Angular Frequency: The rate at which an object rotates or oscillates, measured in radians per second. In the simulation, it refers to the speed at which the coil rotates.

Electromagnetic Induction: The process by which a changing magnetic field induces an electromotive force (emf) in a conductor. This is the core principle behind Faraday's Law.

Electromotive Force (emf): A measure of the energy per unit charge made available by an energy source. In the context of Faraday's Law, it's the voltage induced by a changing magnetic field.

Faraday's Law: A fundamental law of electromagnetism stating that a time-varying magnetic flux through a loop of wire induces an electromotive force (emf). The magnitude of the emf is proportional to the rate of change of the magnetic flux.

Flux Linkage: The total magnetic flux passing through a coil of wire, calculated by multiplying the magnetic flux by the number of turns in the coil. This is a crucial quantity in Faraday's Law.

Magnetic Field: A region of space where a magnetic force is exerted on magnetic materials or moving electric charges. It is a vector field characterized by its strength and direction.

Magnetic Flux: The measure of the total magnetic field passing through a given area. It’s often described as the “amount” of magnetic field passing through an area, and its change is directly related to emf induction.

FAQ

1. What is the primary focus of the Faraday Law JavaScript HTML5 Applet Simulation Model described in the source? The simulation primarily focuses on visualizing and understanding Faraday's Law of electromagnetic induction. It specifically demonstrates how a rotating rectangular coil within a uniform magnetic field generates an electromotive force (EMF), and it allows users to modify the angular frequency to observe the effect on both the frequency and peak EMF produced. The model essentially shows the dynamic relationship between changing magnetic flux and induced voltage.
2. What are the main parameters or elements that can be manipulated within the Faraday Law simulation? The main parameter that can be manipulated is the angular frequency of the rotating coil. By altering the angular frequency, users can observe how this change affects the frequency of the induced EMF and the magnitude of the peak EMF generated. This allows for direct visual and interactive exploration of how the rate of change in flux influences induced voltage.
3. What is EasyJavaScriptSimulation (EjsS), and how does it relate to the models provided? EasyJavaScriptSimulation (EjsS) is a modeling tool that facilitates the creation of interactive simulations using JavaScript, which can be run on web browsers. The models mentioned in the source are created using EjsS allowing them to be embedded in web pages and accessible on various platforms (desktops, tablets, phones). It is designed to make it easy for educators to build models without needing in-depth programming knowledge.
4. What platforms are the JavaScript HTML5 Applet Simulations compatible with? The JavaScript HTML5 applet simulations are designed to be broadly compatible. They can run on various operating systems including Windows, MacOSX, and Linux. They are also designed to work on a wide variety of devices such as laptops, desktops, tablets (including iPads), and smartphones (including Android and iOS devices), as well as ChromeBook Laptops. This broad compatibility is due to their HTML5/JavaScript nature and use of web browsers.
5. Besides the Faraday Law model, what other types of simulations and topics are covered by the resources described? The resources cover a diverse range of physics and mathematics topics. Some of them include: electromagnetism, mechanics (kinematics, dynamics, projectile motion, oscillations), optics (diffraction, lenses), thermodynamics (Three States of Matter), quantum mechanics, astronomy and gravity, mathematics (primary school numbers, geometry). The resources use applet simulations in HTML5/JavaScript to make these topics more tangible and understandable. There is also a clear emphasis on utilizing Tracker for data analysis and modeling.
6. How are these simulations being used in the educational context, based on the source? The simulations are being used as open educational resources for conceptual instruction in schools, and are especially used at the secondary level in Singapore. The goal is to enable interactive and visual learning, and thus deepen understanding by letting students explore the phenomena by modifying parameters. They appear to be designed for use in workshops, talks, and as part of an interactive textbook, suggesting a blended learning approach that integrates simulations into other forms of teaching. There are also examples of data analysis via Tracker in conjunction with these models.
7. What are some of the awards or recognition the Open Source Physics @ Singapore initiative has received? The Open Source Physics @ Singapore initiative has received several awards, including the Ministry of Education Service Excellence Award (2012), Ministry of Education Outstanding Innovator Award (2013), Public Service 21 ExCEL Awards Best Ideator (2012), Public Service 21 Distinguished Star Service Award (2014), the UNESCO King Hamad Bin Isa Al-Khalifa Prize for the Use of ICTs in Education (2015-6) and a GOLD Innergy Award from the Ministry of Education in 2016. These awards highlight the program's innovation and impact on education.
8. What type of licensing and usage permissions are associated with the simulations and resources? The content is licensed under a Creative Commons Attribution-Share Alike 4.0 Singapore License, indicating that the materials can be freely shared and adapted, provided proper attribution is given and derivatives are shared under the same license. However, the use of the EasyJavaScriptSimulations Library for commercial purposes requires contacting This email address is being protected from spambots. You need JavaScript enabled to view it. directly, which suggests that while the models are open for educational use, commercial usage requires special permission or arrangements.