Electromagnetic Induction and Alternating Currents

An electric current can be induced in a coil by flux change produced by another coil in its proximity or flux change produced by the same coil. In both cases, the flux through the coil is proportional to the current.  That is-  ∅B∝I For a closely looped coil of N turns, the same magnetic flux […]

In 1831, Michael Faraday is widely credited with the discovery of induction, which was mathematically stated as Faraday’s law of induction by James Clerk Maxwell in Faraday’s law of induction. Lenz’s law explains the direction in which the induced field will propagate in one direction. Faraday’s law was eventually extended to become the Maxwell–Faraday equation,

An electric current can be created in a coil by flux disturbance initiated by another coil in its immediacy or flux change made by the same coil. The flux passing in the coil corresponds to the current in both cases. Whereby, the current is directly proportional to magnetic flux, or I ∝ ØB. The common

EMF is induced when there is a change in flux either in the coil or in the conductor. It is also called induced electromotive force, electromagnetic induction, and electromotive force induction. The unit for electromotive force is Volt and the formula is ε = V + Ir; where V= voltage, I= current, ε = electromotive

Inductance is a property of an electrical conductor or a circuit that generates an electromagnetic force when the flow of current changes. Inductance is the ability of a conductor to oppose the change in the current passing through the circuit. Energy is used to build the magnetic field, and the energy is released when the

An electric current can be induced in a coil by flux change produced by another coil in its proximity or flux change produced by the same coil. In both cases, the flux through the coil is proportional to the current.  That is,   ØB ∝ I For a closely looped coil of N turns, the

Self-inductance, a salient concept in the study of electromagnetism, talks about a coil or a circuit with varying current and its ability to induce an EMF(electromotive force) that opposes the EMF initially set up in the coil or circuit. An American physicist, Joseph Henry, was the first person to introduce the world to the concept

Lenz’s law of electromagnetic induction tells us that the changing magnetic field induces a current in the inductor such that the magnetic field created by the induced current opposes the initial changing magnetic field. We can find this current flow’s direction with the help of Fleming’s right-hand thumb rule. Lenz’s law predominantly relies upon Faraday’s

Induced EMF Induced EMF is also known by some other terms like – induced electromotive force, electromagnetic induction, and electromotive force induction. It can be termed as the production of a potential difference in a coil due to the changes in the magnetic flux through it. In simpler terms, Electromotive Force or EMF is said

Electromagnetic fields (EMF) exist in the world around us, from electricity in power lines to microwave ovens, and are a part of modern life. They are also the subject of much scientific interest, as they may affect physical matter.  Electromagnetic or magnetic induction is the development of electromotive power across an electrical circuit in a