About This Chapter
Overview of Magnetism - Chapter Summary
Get an overview of magnetism by working through this mobile-friendly physics chapter. After defining the basic components of magnetic fields and forces, you'll examine related concepts such as the right-hand rule, the Biot-Savart law and electromagnetic induction. You'll also have the opportunity to solve magnetism practice problems through the chapter's interactive quizzes. If you need any help with the material, simply submit your questions to our instructors online. Completing this chapter can help you:
- Define the concept of magnetic force
- Tell what magnetic fields are and how they're created
- Understand how magnetic forces affect moving charges
- Apply the right-hand rule in physics
- Examine electric and magnetic forces through the Lorentz force law
- Assess the Biot-Savart law
- Solve problems pertaining to magnetic forces and magnetic fields
- Explain basic electromagnetic induction concepts
1. 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.
2. 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.
3. 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.
4. Physics Right-Hand Rule: Definition & Practice
Many of the equations and tools used in physics are pretty complex, but not all of them. In this lesson, we will explore physics' right-hand rule and then put it into practice.
5. Using the Lorentz Force Law to Examine Electric & Magnetic Forces
Electricity and magnetism are closely related. Electric charges generate electric fields, and moving charges generate magnetic fields. In this lesson, we will learn how to calculate the strength of a magnetic field and use the Lorentz force law, which deals with the two forces on a charge moving through a magnetic field.
6. 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.
7. Magnetic Forces & Fields Practice Problems
Magnetism and electricity are closely related. When current flows in a wire, a magnetic field is generated. In this lesson, we will explore how magnetic fields can exert forces on parallel current-carrying wires.
8. 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.
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Other chapters within the Physics 101: Intro to Physics course
- Intro to Physics
- Overview of Vectors
- Overview of Kinematics
- Overview of Forces
- Overview of Gravity
- Basics of Newton's First Law
- Basics of Newton's Second Law
- Basics of Newton's Third Law
- Energy and Work in Physics
- Overview of Linear Momentum in Physics
- Basics of Rotational Motion
- Waves in Physics
- Sound & Light in Physics
- Basics of Optics
- Fluid Dynamics in Physics
- Basics of Thermodynamics in Physics
- Overview of Electrostatics
- Basics of Nuclear Physics
- Studying for Physics 101