vector field

The force experienced by a charged particle moving in space where both electric and magnetic field exist is called lorentz force. The lorentz force is therefore the vector sum of force due to electric field and the force due to magnetic field. Mathematically ..

It makes the study of such a wide variety of organisms easy. It projects before us a good picture of all life forms at a glance. It helps us understand the interrelationship among different groups of organisms. It serves as a base for the development of other biological sciences such as ..

Hence we find that the magnetic flux depends on (i) the strength of the magnetic field. (ii) the area of the surface. (iii) the angle between the magnetic field vector and the area vector. Increasing the magnetic flux through a surface can be done in 3 ways. ..

Electric charge is a basic property of all matter. Unlike charges attract, like charges repel. Conductor allow flow of electric charges through them while insulators don't. Electric charges have three basic properties (a) Additivity (b) Quantisation (c) Conservation Coulomb's law: the ..

The Biot - Savart's law enables us to write the general results for the magnetic field due to an arbitrary current distribution or it is an experimental law predicted by Biot and Savart dealing with magnetic field strength at a point due to a small current element. If AB repre..

The principle states that when a number of charges are interacting , the resultant force on a particular charge is given by the vector sum of the forces produced by the individual charges. If several point charges q 1 , q 2 , q 3 .............. q n simultaneously exert electric forc..

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Potential at a point due to a system of charges is the sum of potentials due to individual charges Consider a system of charges q 1 , q 2 , q 3 , …q n with positive vectors r 1 , r 2 , r 3 ,…..r n relative to the origin P. The potential V 1 at P due to charge 'q 1 '..

Consider two charges q 1 and q 2 with position vectors r 1 and r 2 respectively, relative to some origin. To calculate externally the work done in building this configuration, we have to consider the charges q 1 and q 2 initially at infinity and determine the work done by an external agen..

>When final image is at the least distance of distinct vision from the eye, the magnifying power is given by In a terrestrial telescope, final image has to be made erect with respect to the object. For this, we have to use an erecting lens between objective lens and eye lens. Expressions for magnif..