Skills Hub

Moving Iron Instruments These are instruments in which the current-carrying coil (electromagnetic) is stationary while the soft iron moves. The iron... Read more

Electrodynamometer Type Instruments It is also called an electrodynamic instrument. It is a type of moving coil instrument that can be used on both A... Read more

Working Principle of Transformer A transformer is a static (or stationary) piece of apparatus by means of which electric power in one circuit is tran... Read more

Fleming's Left & Right Hand Rule  This law was introduced by John Ambrose Fleming. With the help of this law, we can easily determine the direc... Read more

Parts of DC Machine  The simple loop generator has been considered in detail merely to bring out the basic principle underlying construction and work... Read more

Permanent Magnet Moving Coil (PMMC) The operation of a permanent-magnet moving-coil type instrument is be based upon the principle that when a curren... Read more

Types of Induced EMF There are two types of Induced emf. Dynamically induced emf Statically induced emf In the first case, usually the field is stati... Read more

Lenz's Law  Lenz's law, named after the physicist Emil Lenz who formulated it in 1834. The direction of the induced current may also be found b... Read more

Faraday’s Laws of Electromagnetic Induction | First & Second Law Faraday summed up the above facts into two laws known as Faraday’s Laws of Electro... Read more

Production of Induced E.M.F. and Current Fig "a" is shown an insulated coil whose terminals are connected to a sensitive galvanometer G. It i... Read more

Relation Between Magnetism and Electricity Hans Christian Oersted discovered the relationship between electricity and magnetism in 1820. It is well k... Read more