Ch 12: Basics of Electricity & Magnetism

About This Chapter

To boost your understanding of basic electricity and magnetism concepts, work through this comprehensive study guide chapter. The chapter can be used for a variety of educational purposes, including test preparation, homework help and casual learning.

Basics of Electricity & Magnetism - Chapter Summary

This series of engaging and expertly taught video lessons neatly lays out the fundamentals of electricity and magnetism. Using a simplified teaching style, our instructors show you basic electricity and magnetism topics, such as electric charge, parallel circuits, electromagnetic induction, energy conversion, Coulomb's law and much more. Upon completion of the chapter, you should be able to:

  • Define repulsion and attraction in regards to electric charge and force
  • Recognize the causes of static electricity
  • Identify electric current units
  • Compare series and parallel circuits
  • Summarize Coulomb's law
  • Explain basic concepts related to magnets, electromagnets and magnetic fields
  • Describe the roles of conductors and transformers in electromagnetic induction
  • Determine how electric generators and motors convert between mechanical and electrical energy

The chapter covers many scientific terms and concepts, which is why we've included plenty of assessments throughout the chapter. Take the lesson quizzes and chapter exam to reinforce your electricity and magnetism knowledge. You can also use the Ask the Expert feature if you have any questions about the chapter topics. Use any computer or mobile device to access these resources, and feel free to study whenever you have spare time.

13 Lessons in Chapter 12: Basics of Electricity & Magnetism
Test your knowledge with a 30-question chapter practice test
Electric Charge and Force: Definition, Repulsion & Attraction

1. Electric Charge and Force: Definition, Repulsion & Attraction

Have you ever wondered what electricity is and where it comes from? Have you ever been zapped by static electricity and wondered how it got there? We'll answer all of these questions in this lesson on electric charge and force!

What is Static Electricity? - Definition, Causes & Uses

2. What is Static Electricity? - Definition, Causes & Uses

In this lesson you will learn what static electricity is, what causes it, and what conditions prevent static electricity from occurring. You'll also see some fun and interesting real world situations and applications that involve static electricity.

What is Electric Current? - Definition, Unit & Types

3. What is Electric Current? - Definition, Unit & Types

Like a river current is the flow of water molecules, electrical current is the flow of charged particles. In this lesson, we're going to explore what electrical current is, what causes it, and that, unlike a water current, electrical current doesn't always flow in one direction.

Potential Difference: Definition, Formula & Examples

4. Potential Difference: Definition, Formula & Examples

Electrical potential difference is the difference in the amount of potential energy a particle has due to its position between two locations in an electric field. This important concept provides the basis for understanding electric circuits.

Series Circuits: Definition & Concepts

5. Series Circuits: Definition & Concepts

When you flip a switch to turn your lights on, you are completing a circuit and providing a pathway for electrons to flow. In this lesson, you'll learn how connecting devices in a series along that circuit affects the current and resistance throughout.

Parallel Circuits: Definition & Concepts

6. Parallel Circuits: Definition & Concepts

People moving through an airport are similar to electrons moving through a circuit. Parallel circuits are one type of simple circuit, and they get their name from the multiple, parallel paths they provide for electron flow.

Ohm's Law: Definition & Relationship Between Voltage, Current & Resistance

7. Ohm's Law: Definition & Relationship Between Voltage, Current & Resistance

Did you know that electrical current is affected by the voltage and resistance in a circuit? In this lesson, we'll use Ohm's law, which tells us how current, voltage, and resistance are related, as we work through several electric circuit examples.

Coulomb's Law: Variables Affecting the Force Between Two Charged Particles

8. Coulomb's Law: Variables Affecting the Force Between Two Charged Particles

In the 18th century, Charles Coulomb uncovered the secrets of electrostatic force between charged particles. The results of his experiments led to what is now known as Coulomb's Law, which tells us how force, charge, and distance are all related.

What is a Magnet? - Definition & Examples

9. What is a Magnet? - Definition & Examples

In this lesson, you will learn what a magnet is and how it works at the atomic level. You'll also see how the earth's magnetic field works. A short quiz will follow.

What is a Magnetic Field?

10. 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.

What is an Electromagnet? - Definition, Uses & Parts

11. What is an Electromagnet? - Definition, Uses & Parts

In this lesson, you'll learn what an electromagnet is, how it is used in a few real-life situations, and the parts that make it up. A short quiz will follow.

Electromagnetic Induction: Conductor to Conductor & Transformers

12. 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.

Electric Motors & Generators: Converting Between Electrical and Mechanical Energy

13. Electric Motors & Generators: Converting Between Electrical and Mechanical Energy

Both generators and electric motors are common devices in everyday life, but how do they work and what is the difference between them? In this lesson, we'll explore both of them, which may produce different results but are actually more similar than they may seem.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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