electrostatic surface

If the electric field is not normal to the surface, then it would have same non-zero component along the surface. The free charges on the surface would then experience a force and move. In a static situation, electrostatic field should not have tangential co..

Electrostatics of Conductor - All materials are broadly classified into two categories, one conductors and other insulators. When a conductor is placed in a electric field, there is a large scale of physical movement of free electrons, within the conductor and they move out only if we mak..

This technique is used by many electrical instruments from outside electrical influence. Consider a conductor with a cavity and no charges in the cavity. Then, the remarkable result is that whatever the shape, size of the cavity and whatever be the charge on the conductor, whatever the external el..

Equipotential Surfaces - Electrostatic field lines help us visualize electric fields. Similarly, potential at various points in an electric field can be represented graphically by equipotential surfaces. To help mountain climbers, contour lines are drawn on topographic..

Electrostatic field lines help us visualize electric fields. Similarly, potential at various points in an electric field can be represented graphically by equipotential surfaces. To help mountain climbers, contour lines are drawn on topographic points through points of some elev..

Conductors have free electrons. Electrostatic field inside a conductor is zero. At the surface, electrostatic field is normal to the surface at every point. Electrostatic field at the surface of charged conductor is given by ..

Then term 'Xerography'; the use of Photoelectric phenomena to transfer an image from one sheet of paper to another comes from the Greek words for "dry" and "writing". Dry copying is based on the principle that materials with opposite electrical charges attract one another and that some materials co..

Explanation of Induction - When the positively charged body is brought near the two cans A and B, the electrons (-ve charges) from both the cans are attracted and get concentrated on B which is near R. The can A which has lost the electrons is left with an equal amount of positive charge. When the ..

Magnetism and Gauss's Law - Gauss's theorem in electrostatics indicates that isolated charges exist and that electric lines of force do not form closed loops. The situation is different in magnetism. The Gauss's law in magnetism therefore will ..