Author: Saim Khalid

Introduction Principle of Electromagnetism Construction of an Electromagnet Factors Affecting Electromagnet Strength Types of Electromagnets Applications of Electromagnets Advantages of Electromagnets Disadvantages / Limitations Experiments and Demonstrations Recent Advances in Electromagnet Technology

Ampère’s Circuital Law is one of the cornerstone principles in electromagnetism. It provides a powerful relationship between electric currents and the magnetic fields they produce. Named after the French physicist André-Marie Ampère, this law is a direct result of experimental observations and forms the foundation of magnetic field analysis in many practical applications, including electromagnets,…

The Biot-Savart Law is one of the fundamental principles of electromagnetism, describing how electric currents generate magnetic fields. Named after Jean-Baptiste Biot and Félix Savart, who formulated it in 1820, this law is analogous to Coulomb’s law for electric charges. It forms the basis for understanding magnetic fields due to current-carrying conductors, whether straight wires,…

Electric currents and magnetic fields are intimately connected. When a current-carrying conductor is placed in a magnetic field, it experiences a force known as the magnetic force on a conductor. This phenomenon is fundamental to the operation of electric motors, generators, and numerous electromechanical devices. Understanding this concept is crucial for students, engineers, and anyone…

Introduction Magnetism is one of the fundamental forces of nature, and it arises from the motion of electric charges. The magnetic force on moving charges is a cornerstone of electromagnetism, bridging the concepts of electric current, magnetic fields, and particle motion. Understanding this phenomenon is crucial in fields ranging from particle physics and electrical engineering…

Earth is not just a rotating sphere of rock and water; it is also a giant magnet generating a magnetic field that extends from the planet’s interior out into space. This field, known as geomagnetism, plays a vital role in navigation, protects life from harmful solar radiation, and influences atmospheric and geological processes. Understanding Earth’s…

Introduction Magnetism is a fundamental aspect of nature that has fascinated scientists for centuries. From the first observations of natural magnets in ancient Greece to modern applications in electrical engineering, electronics, and medical imaging, magnetism plays a critical role in technology and daily life. Central to the understanding of magnetism are magnetic fields and magnetic…

Magnetism is the force exerted by magnets when they attract or repel each other or other materials. Historically, lodestones were the first naturally occurring magnets discovered thousands of years ago. William Gilbert, in the 16th century, studied magnetism systematically and recognized Earth as a giant magnet. Types of Magnets Magnetic Poles 2. Magnetic Fields and…

Electric circuits form the backbone of all electrical and electronic devices. From powering household appliances to running complex industrial systems, understanding circuits is essential for engineers, students, and hobbyists. However, the theory alone is insufficient without the ability to solve practical circuit problems. These problems involve applying principles such as Ohm’s Law, Kirchhoff’s laws, series…

Introduction Modern technology relies not only on electricity, mechanics, and software but also on materials with unique properties and devices engineered from these materials. From semiconductors powering our computers to superconductors enabling lossless energy transmission, special materials are at the heart of innovation. These materials often exhibit extraordinary electrical, magnetic, thermal, or optical properties, allowing…