Maxwell’s equations

This article is about Maxwell’s Equations. 1. Integral Form of Gauss’s Law Under this heading, I’ll cover ” Gauss’s law for electric fields ” which is among one of Maxwell’s equations. In this article, I’ll try to cover the Integral form of Gauss’s Law. Gauss’s law for electric fields as we all know deals with the electrostatic field, this law to be a powerful tool … Continue reading Maxwell’s equations »

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Gradient of a scalar field and its physical significance

Learn about what is Gradient of a scalar field and its physical significance. The gradient of a scalar field Let us consider a metal bar whose temperature varies from point to point in some complicated manner. So, temperature will be a function of x, y, z in Cartesian co-ordinate system. Hence temperature here is a scalar field represented by the function T(x,y,z). Since temperature depends on … Continue reading Gradient of a scalar field and its physical significance »

Scalar and Vector fields

In this article, learn what are Scalar and Vector fields. We know that many physical quantities like temperature, electric or gravitational field etc. have different values at different points in space, for example, the electric field of a point charge is large near the charge and it decreases as we go farther away from the charge. So we can say that electric field here is the … Continue reading Scalar and Vector fields »

Fourier Series formula sheet

Fourier series is an expansion of a periodic function of period $2\pi$ which is representation of a function in a series of sine or cosine such as $f(x)=a_{0}+\sum_{n=1}^{\infty }a_{n}cos(nx)+\sum_{n=1}^{\infty }b_{n}sin(nx)$ where $a_{0}$ , $a_{n}$ and $b_{n}$ are constants and are known as fourier coefficients. In applying fourier theorem for analysis of an complex periodic function , given function must satisfy following condition (i) It should be single valued (ii) It should be continuous.  Drichlet’s Conditions(sufficient … Continue reading Fourier Series formula sheet »

Quantum Mechanics Theory and Applications by Ajoy Ghatak & S. Lokanathan

You people might know about the book Quantum Mechanics Theory and Applications (by Ajoy Ghatak and S.  Lokanathan) Now this is the book referred in most of the Indian Universities as Under Graduate [B.Sc. /B.sc (hons)] and graduate level text. It is indeed a very good book when it comes to learning the concepts of quantum mechanics. Quantum Mechanics is an interesting subject to learn especially … Continue reading Quantum Mechanics Theory and Applications by Ajoy Ghatak & S. Lokanathan »