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Electric Field Strength due to a Uniformly Charged Rod at a General Point To find electric field strength at any general point P, let the point P be at a perpendicular distance R from the rod and let Q be the total charge (For specificity, Q is taken as positive, but the results apply…
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ELECTRIC FIELD INTENSITY due to continuous CHARGE DISTRIBUTIONS Electric Field Intensity due to Continuous Charge Distribution With the help of Coulomb’s Law and Superposition Principle, we can easily find out the Electric Field Intensity due to continuous charge distribution(a system of charge particles). In this article we are going to find out electric…
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Continuous Charge Distribution Introduction :- The source of Electric Field is either a POINT CHARGE or a CONTINUOUS DISTRIBUTION OF CHARGES. On microscopic level every material is actually a discontinuous distribution of particles called atoms/molecules, separated by intervening space. Even if we talk about a cup of water(≅250ml), then at microscopic level it is…
Electric Field Intensity In the previous article The Electric Field Concept we studied about the region around a charge particle, called “Electric Field”. It is the region surrounding a charge (or charge distribution) in which its electrical effects are perceptible. Now In order to explain the strength of ‘action at a distance’, i.e.,…
The Electric Field Concept From Coulomb’s Law, , we conclude that Electric and magnetic forces are :- Non-Contact Forces i.e. no physical contact is required for one charge particle to exert a force on another charge particle and they are Long-Range Forces i.e. one charge particle exert electric force on another charge particle even…
Nature of Light The scientific study of the behavior of light is called optics and it covers :- Reflection of light by a mirror or other object, Refraction by a lens or prism, Diffraction of light as it passes by the edge of an opaque object Interference patterns resulting from diffraction and polarization…
Form of Coulomb’s Law when Dielectric is filled partially between the charges Coulomb’s Law with partially filled Dielectric between the charges :- Suppose two charge particles q1 and q2 are placed r distance apart in vacuum, then from Coulomb’s Law force acting between them:- Now let a dielectric medium ( of permittivity εr…
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Electrostatic Equilibrium of charged particles Electrostatic Equilibrium:- In equilibrium net electric force on every charged particle is zero. The equilibrium of a charged particle, under the action of Colombian forces alone can never be stable. Equilibrium is of three types:- (a) Stable Equilibrium : A charge is initially in equilibrium position and is displaced by…
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Principle of superposition Principle of superposition :- The force is a two body interaction, i.e., electrical force between two point charges is independent of presence or absence of other charges and so the principle of superposition is valid, i.e., “force on a charged particle due to number of point charges is the resultant…
