Capacitor is a two-terminal electric component that has the ability or capacity to store energy in the form of electric charge. The ability of a capacitor to store the energy in the form of an electric charge is known as Capacitance. Symbol of a capacitor: Figure:9.a Charging a capacitor: The plates of the capacitor are … Read more

Gauss’s law is basically the relation between the charge distribution to the behavior of the electrostatic field in space. Before we discuss Gauss’s law in detail, let us study the electric field due to continuous charge distributions. Let us consider that charges on a surface are located very close together so that such a system … Read more

Let us consider a system, in which a charge $Q$ is placed at the origin and another charge $q$ is placed at a point P. There will be some force of attraction or repulsion between two charges. Now if charge q is removed from the system, there are two possibilities. There is nothing at point … Read more

Lets us express the force between two point charges in terms of their position vector. Figure:2.a Consider two point charges $q_{1}$and $q_{2}$are at P and Q respectively. The position vector of point P is = and that of point Q is . Let $r$ be the distance between these charges. We have, Where is the … Read more

Electric Flux: Electric Flux is defined as a number of electric field lines, passing per unit area. Consider a plane surface of the area ?S in a uniform electric field E. A positive normal N to the surface makes angle $\theta$ with the electric field E. Figure:4.a Electric flux of the electric field through ?S … Read more

Coulomb’s law is a quantitative statement about the force between two point charges and it is an analog of Newton’s Universal Law of Gravitation. Coulomb’s law states that the force of attraction or repulsion between two stationary point charges is directly proportional to the product of the magnitude of two charges and inversely proportional to … Read more

The presence of the waves around us works to channelize the various phenomenon. Imagine if one is sailing in the boat, or just hear the siren of the ship. In these cases, one will be able to directly receive the sound wave from the siren of the ship, as well as the sound wave that … Read more

The progressive wave travels continuously in the medium in the same direction without any change in its amplitude. The progressive wave may be longitudinal or transverse. Let suppose that the plane’s simple harmonic motion is traveling from the O origin along the positive direction in the X-axis. If there is a counting of the time … Read more

Doppler Effect is also known as Doppler shift and it is the change in frequency or we can say wavelength of a wave in relation to an observer who is moving to the wave source. This phenomenon is described by an Australian physicist Christian Doppler in 1842. For an example of this Doppler shift can … Read more

Wave motion is the propagation of the disturbances, which is the deviation from the resting state or the equilibrium state, from one place to another place in the organized and the regular way. The surface waves on the water are the most familiar ones. Both the waves of the light and sound travel in the … Read more