About This Chapter
Basics of Electric Power - Chapter Summary
Learn about the basics of electric power with these short and fun science lessons. The lessons in this chapter define electric power and provide clear explanations of relevant laws, components and concepts. Take the included self-assessment quizzes to make sure you fully understand the lesson material. Expert instructors are also available to answer any questions you may have. To make the learning experience convenient, this chapter is accessible 24/7 and available on any computer or mobile device. These lessons teach you things like:
- What electric power is
- The types and components of electric circuits
- What Ohm's law says about voltage, current and resistance
- The types of electric currents
- Examples of conductors and insulators
- What Coulomb's law says about the force between two charged particles
- What electric potential is
1. What is Electric Power?
Power is a word we use all the time, but do you really know what it means? We'll look at how electrical power relates to voltage, current and resistance and how knowing that relationship can help you in everyday life.
2. Electric Circuit Fundamentals: Components & Types
Electric circuits can be configured to power several loads, such as light bulbs, in series or in parallel. In this lesson, we'll look at both types of circuits and see how the voltage, current, and resistance are affected by installing additional loads.
3. 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.
4. 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.
5. Insulators and Conductors: Examples, Definitions & Qualities
In this lesson, we'll explore the reasons that some materials conduct electrical energy with ease while others block it almost completely. We'll also talk about the property of conductivity and some everyday examples of insulators and conductors.
6. 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.
7. Electric Potential: Charge Collections and Volt Unit
In this lesson, we'll find out that electric charges can be rather lazy until something motivates them to get work done. Find out what gives electric charges the potential to do work and how we measure that potential with something called voltage.
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Other chapters within the Science 102: Principles of Physical Science course
- Force, Mass & Newton's Laws of Motion
- Thermodynamics & Energy
- Principles of Thermodynamics
- Sound Waves & Optics
- Magnetic Forces & Fields
- Experimental Chemistry in the Laboratory
- Properties of Matter in Chemistry
- Compounds & Concentration
- Basics of Chemical Bonding
- Properties of Gases & Gas Laws
- Kinetics in Chemistry
- The Periodic Table
- Atoms & Atomic Theory
- Understanding Stoichiometry
- Acid-Base Chemical Reactions
- Chemical Equilibrium
- Studying for Science 102