About This Chapter
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.
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!
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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Other chapters within the NES General Science (311): Practice & Study Guide course
- NES General Science: Scientific Inquiry
- NES General Science: Science & Society
- Overview of Atoms & Atomic Theory
- Understanding States of Matter
- Chemical Formulas & Bonds
- NES General Science: The Mole Concept
- NES General Science: Chemical Reactions
- NES General Science: Solutions & Solubility Factors
- Energy Transformations of Matter
- Overview of Force & Motion
- Mechanical & Electromagnetic Waves
- Intro to Cellular Biology
- NES General Science: Traits of Living Organisms
- Overview of Human Body Systems
- Principles of Genetics
- NES General Science: Evolution
- NES General Science: Ecosystems
- NES General Science: Rocks & Minerals
- NES General Science: Historical Geology
- Overview of Weathering & Erosion
- NES General Science: Plate Tectonics
- Intro to Earth's Hydrosphere
- Basics of the Atmosphere, Weather & Climate
- Overview of the Solar System & Universe
- NES General Science Flashcards