electric circuits

Have you ever seen lights turn on automatically when you step into a restroom? Or have you ever wondered how a garage door knows not to close when someone is standing beneath it? What these and countless other electronic devices have in common is a sensor. But how do sensors work? What are they used for? Discover how robotic and electronic sensors can be programmed to work as our five senses do, and learn how they are used to save energy, keep us safe, and sometimes make life a little more convenient!.

Did you know that trees, buildings, and even people can act as conductors for electricity? Or have you ever wondered why we're warned not to go outside during a thunderstorm? Scientists, engineers, and electricians use conductors in their work and research, but conductors are also found in many of the devices and tools we use every day. But how does electricity travel through a conductor? Why are some materials better conductors than others? Discover how a conductor works, as well as what makes a good insulator, and explore how different types of conductors work in modern technology!.

Have you ever wondered how the lights in your alarm clock work? Or have you ever considered how that tiny red light in your TV remote control can send a signal that helps you find your favorite show? What these and countless other bright devices have in common is a light-emitting diode, or LED. But how does an LED work? How is it different from other lightbulbs? Explore the key concepts that make up an LED, including semiconductors, electrons, color, and more, as well as learning how LEDs are used in electronics, to light homes, and even to grow food for astronauts!.

Have you ever wondered where the electricity powering your home or school comes from? What about how that electricity travels? In any device that uses electricity, inside is a small path through which that electricity travels, known as a circuit. Whether we see them in these devices or not, circuits are constantly at work. But how do circuits work? How were they invented? Explore the key concepts that make up a circuit, including the power source, conducting path, and load, and learn how circuits power devices of all sizes, from computers to the lights in your home to satellites in outer space!.

Discover the history of batteries and how scientists and engineers figured out ways to store electricity. Explore what makes up a battery, including an anode, cathode, and electrolyte, and learn how batteries can power all kinds of electronics from a cell phone to a bus!.

Modern living wouldn’t be possible without electricity. The history of electricity is interesting because we are constantly finding new ways to use it and searching for better ways to produce it. This book takes a look at how electricity travels, how it is stored in batteries, and the many different types of power plants that produce the electricity needed to light our homes, schools, and businesses. Bright photographs and fascinating fact boxes are paired together to make flowcharts highlighting how circuits work to move electricity, how different kinds of batteries hold charges, and much more in this fascinating science book.

Designed to give readers the "building blocks" of electricity concepts, the sequence of topics and practical applications in this book will provide a solid foundation in electron theory and movement, direct-current series circuits, parallel circuits, series-parallel circuits, voltage line drops, rotating machinery fundamentals, and more! Electricity 1: Devices, Circuits and Materials, 9th Edition follows the same user-friendly approach that made previous editions so effective, while incorporating updates based on the 2008 National Electrical Code. Featuring current industry terminology, photographs of commonly used electrical equipment, and sample problems with solutions, this is an ideal choice for a first course in basic electricity, house wiring, or commercial installations..

"Have you ever wondered how the human brain works? What about your television? It's a complicated answer, but circuits are a simple way to explain it. Circuits make it possible to turn on a light. They make it possible for you to use your digital devices. Increase your knowledge about circuits and find the answers to your most electrifying questions"--Provided by publisher.

Provides a quick reference guide for electricians to use to troubleshoot problems while on the job site. Includes charts, tables, and diagrams.

"A compelling introduction to electric current, this volume investigates the conducting properties of various materials and goes on to describe ways of producing electric currents. It also describes how electricity is used in the home, in industry, and in the world of communications. Aligned to the Common Core science standards, the text explains moving charge, current and stored charge, resistance and power, direct and alternating currents, and electricity from machines, among other subjects. Nine activities help students understand practical applications. A chapter about Thomas Alva Edison honors his electric lightbulb invention and the beginning of the electric age" -- Provided by publisher.