In a paramagnetic material the magnetization of the material is (approximately) directly proportional to an applied magnetic field. However, if the material is heated, this proportionality is reduced; for a fixed value of the field, the magnetization is (approximately) inversely proportional to temperature. This fact is encapsulated by Curie’s law: where is the resulting magnetisation… Read More »
FARADAY’S LAW OF ELECTROMAGNETIC INDUCTION According to the Faraday’s law of electromagnetic induction, emf gets induced in the rotor. As the rotor circuit is closed one so, the current starts flowing in the rotor. This currents called the rotor current. This rotor current produces its own flux called rotor flux. Since this flux is produced… Read More »
Transformer is very simple and basic part of electrical system and considered most efficient of electrical components of machines. If we consider experimental models which are using superconducting windings then we may talk about achieving the the performance of 99.75 percent as well. In practice, energy is found to be lost in the windings, core and… Read More »
What is Magnetism? Magnetism is the study of magnetic fields and their effect on materials. The effect is due to unbalanced spin of electrons in atom. It is readily observed every day from the simple magnet that attracts nails and other metals to cassette tapes to magnet-driven trains. In terms of applications, magnetism is one of… Read More »
Objective of this method statement is to explain the procedure for the Installation of Cathodic Protection System for a construction project in compliance with local and international regulations. This method statement identifies the work related general steps and necessary arrangements, scope of this document includes preparation of equipment, manpower, installation, rebar continuity test for critical… Read More »
To best understand the Electromagnetic Induction lets first have a look on two important laws relating to the subject of this article. Lenz’s law is named after a Russian physicist of Baltic German descent Heinrich Lenz in 1834, and it states that, if an induced current flows, its direction is always such that it will… Read More »