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Module Overview

In this module, magnetic forces and fields are studied. The sequence of the discussions is magnetic forces on charge and on current wire, then magnetic field computations using Biot-Savart law, and followed by the introduction of Ampere’s law. In terms of the techniques for calculating magnetic field strength, the emphasis is on applications of Ampere’s law. Magnetic field in and around a straight current wire, magnetic field at the center of a circular current wire, and magnetic field inside a solenoid are carefully analyzed in this module.

Introduction
 
The theme of this module is magnetism. The module begins with a brief review of commonly occurring phenomena attributable to magnetism. Then a discussion about the effects of magnetic field on charges and currents, and the vector cross product (aka the right-hand rule) is introduced in this context.  Biot-Savart law is followed in the development of the magnetic field strength around a straight current, as well as at the center of a current loop. This derivation work demonstrates the usefulness of Biot-Savart law, at the same time its tedious side, which is a perfect jumping-off point to talk about Ampere’s law next. The focus of the last few units of the module is on applications of Ampere’s law.
 
This module consists of a sequence of 9 videos with 2 step-by-step solved examples and 6 self-assessment questions. It is expected that the course instructor, will supplement the module with additional questions and possibly one laboratory exercise.
 
Prerequisites
 
Before starting this module, it will be helpful to be familiar with:
•    magnets,
•    Electric current,
•    Cross product of two vectors.

Learning Outcomes

  • Recognize basic magnetic phenomena and how magnets interact with each other
  • Be able to distinguish magnetic field lines from electric field lines
  • Understand the right-hand rule in the context of magnetic forces and fields acting on charged particles and currents
  • Use Ampere’s law to calculate the magnetic fields of current distribution with a high degree of symmetry

Explore Module

Please note that this preview is intended for exploration purposes only. If you'd like to use this interactive module in one of your courses,to ensure playback and tracking, you must upload the SCORM package (downloadable below) to your institution's Learning Management System (ex. Blackboard, D2L, Moodle, etc). 

PROJECT FILES
Type: Assessments
Title Author Description
Electromagnetic Force Example | Download File (86.92 KB) Prof. Belinda Wang

A step-by-step example is intended to show learners how to apply concepts taught in the lecture videos to analyze and solve problems.
Magnetic Fields and Forces - MCQ (Quiz) | Download File (95.49 KB) Prof. Belinda Wang

The multiple choice question is intended for self-assessment of leaner’s conceptual understanding of the module content.
Type: Glossary
Title Author Description
Glossary | Download File (142.59 KB) Prof. Belinda Wang

This glossary contains definitions for the modules: Electric Charges and Forces, Electric Fields, Electric Potential and Potential Energy, Capacitance and Capacitor, Magnetic Fields and Forces, and Electromagnetic Induction.
Type: Modules
Title Author Description
V1_2015_Magnetic Fields and Forces (Storyline File) Prof. Belinda Wang

This Articulate Storyline File can be downloaded and modified to your specific learning objectives (within the bounds of the creative commons licensing selected for this file. This is encouraged, but any technical issues are not supported by the University of Toronto.
V1_2015_Magnetic Fields and Forces (Storyline SCORM Package) Prof. Belinda Wang

This Articulate Storyline SCORM package can be uploaded into your institution's Learning Management System.
V2_2021_Magnetic Fields and Forces (Rise SCORM Package) Prof. Belinda Wang

This Articulate Rise SCORM package can be uploaded into your institution's Learning Management System.
Type: Video Links
Title Author Description
Magnetic Fields and Forces - Introduction | Magnetic Fields and Forces - Introduction Prof. Belinda Wang
Magnetism | Magnetism Prof. Belinda Wang

A brief review of magnetic phenomena.
Magnetic Force on Charge | Magnetic Force on Charge Prof. Belinda Wang

A discussion of force acting on moving charge due to magnetic field
Magnetic Force on Wire | Magnetic Force on Wire Prof. Belinda Wang

A discussion of force acting on a current wire due to magnetic field
Magnetic Field - Biot Savart Law | Magnetic Field - Biot Savart Law Prof. Belinda Wang

Application of Biot-Savart law on a straight current wire
Magnetic Field-Current Loop | Magnetic Field-Current Loop Prof. Belinda Wang

Application of Biot-Savart law on a circular current wire
Ampere's Law | Ampere's Law Prof. Belinda Wang

Ampere's law is introduced in this video
Ampere's Law - Solenoid | Ampere's Law - Solenoid Prof. Belinda Wang

Application of Ampere's law on a solenoid
Type: Other Files
Title Author Description
Ampere's Law Example | Download File (72.72 KB) Prof. Belinda Wang

A step-by-step example is intended to show learners how to apply concepts taught in the lecture videos to analyze and solve problems.
Back to Parent Project
Electromagnetics and Circuits

This project is a set of 12 learning modules that support the teaching of foundational level electromagnetics and circuits in engineering programs. These modules could be used for an inverted or hybrid delivery of a first year course, or courses. We envision these modules partially or fully replacing in-person lectures, and being paired with in-person laboratories and other hands-on experiential learning activities to create an effective, active learning experience.

Project Lead(s): Prof. Belinda Wang
Project Collaborator(s): Dr. David G. NairnDr. Ajoy Opal
Project Team Members: Sean McAlary
Details
Used in:
ECE110

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