What Is Hysteresis? Types of Hysteresis There are two main types of hysteresis: Rate-dependent Rate-independent Hysteresis Loop The relation between B and H in ferromagnetic materials is nonlinear and depends on the history of the material. B is the magnetic flux density, which measures the strength and direction of the magnetic field. H is the … Read more
Magnetism arises from the alignment and movement of charged particles within a material. These particles, such as electrons, possess an intrinsic property known as spin, which generates a magnetic moment—a tiny magnetic field associated with each particle. When these magnetic moments align in a coordinated manner, they give rise to macroscopic magnetic properties in the … Read more
The Earth’s magnetism is the phenomenon of a magnetic field that surrounds the Earth. It is generated by the motion of molten iron and nickel in the Earth’s outer core, which acts like a giant electromagnet. The magnetic field extends from the interior of the Earth out into space, where it forms the magnetosphere. The … Read more
A bar magnet is a rectangular piece of an object, made up of iron, steel, or any other ferromagnetic substance or ferromagnetic composite, that shows permanent magnetic properties. It has two poles, a north, and a south pole, such that when suspended freely, the magnet aligns itself so that the northern pole points towards the … Read more
A moving coil galvanometer is a device that can measure small electric currents by detecting the magnetic effect of the current on a coil suspended in a magnetic field. Working Principle When a current flows through the coil, a torque acts on it due to the magnetic force on the current-carrying wires. This torque is … Read more
Torque On A Rectangular Current Loop In A Uniform Magnetic Field Torque on a rectangular current loop in a uniform magnetic field is the rotational force that acts on the loop due to the interaction of the magnetic fields produced by the current in the loop and the external field. The magnitude of the torque … Read more
Magnetic force between two parallel conductors is the force that arises due to the interaction of the magnetic fields produced by the currents in the conductors. The magnitude of the force per unit length of the conductors depends on the currents and the distance between them. The direction of the force depends on whether the … Read more
What is Toroid? A toroid is a device that can produce a magnetic field by using a coil of wire wrapped around a ring-shaped core. The core can be made of iron or other materials that can enhance the magnetic field. A toroid is similar to a solenoid, a coil of wire that creates a … Read more
A solenoid is a type of electromagnet that consists of a coil of wire wrapped around a metal core. When an electric current flows through the coil, it creates a magnetic field inside and around the coil. The magnetic field can be used to move a metal rod or plunger that is attached to the … Read more
André-Marie Ampère was a French physicist and mathematician who lived from 1775 to 1836. He’s best known for his foundational contributions to the understanding of electromagnetism. Ampère’s work laid the groundwork for the development of the modern theory of electromagnetism. One of his most significant achievements was the formulation of Ampère’s law, which describes the … Read more