Database Management Systems

Database Management Systems

by Walter Baker

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ISBN 9781836596318
Publisher Chapman Press
Copyright Year 2025
Price £175.00

About This Book

Electricity and magnetism are fundamental aspects of physics that describe the behavior of electric charges and magnetic fields. Together, they form the unified force known as electromagnetism, one of the four fundamental forces of nature. Electricity involves the movement of electrons through a conductor, resulting in an electric current. This current generates an electric field, which can exert force on other charged particles. Voltage, resistance, and current are key concepts in understanding electrical circuits. Magnetism, on the other hand, arises from the motion of electric charges, especially within atomic structures. Materials like iron, cobalt, and nickel exhibit strong magnetic properties. A magnetic field is created around a magnet or a current-carrying wire and can influence other magnets or magnetic materials nearby. The connection between electricity and magnetism was first revealed through the work of scientists like Michael Faraday and James Clerk Maxwell. Maxwell's equations describe how electric and magnetic fields interact and propagate as electromagnetic waves, such as light. These principles are the basis for many technologies in modern life, including electric motors, generators, transformers, and wireless communication. Understanding electricity and magnetism is essential for advancements in engineering, physics, and everyday technological applications. This book explores the fundamental principles and practical applications of electricity and magnetism, bridging theory with real-world technologies. Contents: 1. Introduction, 2. The Concept of Electricity, 3. Magnetic Field of Transformers, 4. Electrostatic Energy, 5. Electrostatic Potential, 6. Basics of Magnetism, 7. Electromagnetic Field Theory, 8. Magnetic Circuit Calculations, 9. Electric and Magnetic Circuits, 10. Magnetic Force on a Charged Particle.