Definition: A point charge at rest creates a force field in its surrounding. This force filed is known as Electric Field. You can understand force field like a field created by a magnet in its surrounding due to which iron piece get attracted toward the magnet. Another example of force field is gravitational field. Thus, … Read more What is Electric Field – Definition, Calculation and Example
Faraday’s Law: Faraday’s Law states that, whenever the flux of magnetic field through the area bounded by a closed conducting loop changes, an emf is produced in the loop. The produced emf is given by ξ = -dØ/dt where Ø = ∫B.ds is the flux of the magnetic field through the area. Ø is called the … Read more Faraday’s Law of Electromagnetic Induction
Definition: Lenz’s Law states that the direction of the induced current is such that it opposes the change that has induced it. In other words, it is defined as “Effect Opposes the Cause”. Lenz’s Law is used to find the direction of induced current in a conducting loop. As per Faraday’s Law of electromagnetic induction, a current … Read more What is Lenz’s Law?-Definition with Diagram
What is Eddy Current? The literal meaning of Eddy is a circular current. Thus the word itself means current having no definite circular loop. Eddy current is defined as the induced current on the surface of conductor in little loops or eddies due to changing magnetic flux. To better understand the concept of eddy current, … Read more What is Eddy Current? – Concept of Electromagnetic Damping
Gauss Law states that, the flux of net Electric Field through a closed surface is equal to the net charge enclosed by the closed surface divided by permitivity of space. Therefore, mathematically it can be written as ∫E.ds = Qint/ξ (Integration is done over the entire surface.) where Qint = Total charge enclosed … Read more Gauss Law and its Application
In this post we will discuss, why electric field inside a conductor is zero. This is very basic but important concept to understand. So we will start will zero and will move further to explain this. Let us assume that a conductor is kept in an external uniform electric field E. The direction of electric … Read more Why Electric Field inside a Conductor is Zero?
Coulomb’s law is an experimental law formulated in 1785 by the French colonel, Charles Augustin de Coulomb. It deals with the force a point charge exerts on another point charge. By a point charge we mean a charge that is located on a body whose dimensions are much smaller than other relevant dimensions. For example, … Read more Coulomb’s Law
Magnetic Circuit is defined as the path followed by a Magnetic Flux. Magnetic Flux always has a tendency to follow low Reluctance path. The laws of Magnetic Circuit are quite similar to the Electric Circuit but the terms used in Magnetic Circuit analysis is different. Let us consider a Toroid having a magnetic path of … Read more Basics of Magnetic Circuit
Motional EMF is the potential difference produced across the length of a conductor moving in a Magnetic Field. Suppose a conductor of length l is moving with a velocity v in a uniform magnetic field B as shown in figure below. As the conductor is having mobile electrons which can move freely, therefore we can … Read more How does Motional EMF Produced?