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Ch 14: The Physics of Magnetism

About This Chapter

Watch video lessons on the physics of magnetism and learn about magnetic fields and force, electromagnetic induction and more. These video lessons are short and engaging and make learning easy!

Physics of Magnetism - Chapter Summary and Learning Objectives

This chapter of Intro to Physics examines magnetic fields and electromagnetic induction. You'll find out about materials that can be magnetized and factors that affect the strength of magnetic fields. Lessons are included on the Biot-Savart Law and Faraday's Law of Electromagnetic Induction, and you'll find videos on transformers and conductor to conductor currents. At the end of this chapter, you'll be familiar with:

  • Poles and dipoles
  • Shape and direction of field lines
  • Practical applications for magnetic forces
  • Variables that affect induction

Video Objectives
Magnetic Force: Definition, Poles & Dipoles Describe the root of magnetism and properties of magnets.
What is a Magnetic Field? Learn to detect magnetic fields and determine the strength of the field. Describe ferromagnetic materials.
How Magnetic Fields Are Created Explain how magnetic fields are created by moving charges. Examine electromagnets and factors that affect the strength of the field.
How Magnetic Forces Affect Moving Charges Explain why relative motion is important and discuss direction and strength of the force.
The Biot-Savart Law: Derivation & Examples Get details on how this law is used with magnetic fields and see examples of it.
Faraday's Law of Electromagnetic Induction: Equation and Application Describe Faraday's experiments and how his electromagnetic induction law can be applied to practical situations.
Electromagnetic Induction: Definition & Variables that Affect Induction Understand how a magnet can be used to induce a voltage in a conductor. Discuss the variables that affect induction.
Electromagnetic Induction: Conductor to Conductor & Transformers Describe how current in one conductor can cause a voltage in another conductor. Discuss the variables that affect induction and learn about the transformer.

8 Lessons in Chapter 14: The Physics of Magnetism
Test your knowledge with a 30-question chapter practice test
Magnetic Force: Definition, Poles & Dipoles

1. Magnetic Force: Definition, Poles & Dipoles

You're probably familiar with magnets, but have you ever stopped to consider how they work? In this lesson, we'll look at the root of magnetism and some of the fundamental properties of magnets.

What is a Magnetic Field?

2. What is a Magnetic Field?

Magnetic fields fill the space around all magnets, but they're impossible to detect with our own senses. We'll use a common tool to map out a magnetic field and then discuss ferromagnetic materials to see how a magnetic field can be used to create new magnets.

How Magnetic Fields Are Created

3. How Magnetic Fields Are Created

Have you ever wondered how magnetic fields are created? In this lesson, we'll discuss the very simple answer to this question and look at how electric current can be used to make electromagnets, which have many everyday applications.

How Magnetic Forces Affect Moving Charges

4. How Magnetic Forces Affect Moving Charges

A magnetic field exerts a force on a moving charged particle in ways that you might not expect. In this lesson, we're going to look at the direction of this force and the factors that affect its strength.

Faraday's Law of Electromagnetic Induction: Equation and Application

5. Faraday's Law of Electromagnetic Induction: Equation and Application

Electromagnetic induction allows us to induce voltage with the movement of a magnetic field. Credited to Michael Faraday, this discovery was not only groundbreaking at the time, but it has since led to many applications in everyday life.

Electromagnetic Induction: Definition & Variables that Affect Induction

6. Electromagnetic Induction: Definition & Variables that Affect Induction

We use electromagnetic induction every day, but do you have any idea what it is? In this lesson, we'll discuss this everyday phenomenon, the factors that affect its strength and its most common applications.

Electromagnetic Induction: Conductor to Conductor & Transformers

7. Electromagnetic Induction: Conductor to Conductor & Transformers

Every day, we make use of a special case of electromagnetic induction known as mutual induction. In this lesson, we'll talk about this special phenomenon and how it is used in many common devices.

The Biot-Savart Law: Definition & Examples

8. The Biot-Savart Law: Definition & Examples

After watching this lesson you will be able to explain what the Biot-Savart Law is, and use the simplified version to solve problems. A short quiz will follow.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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