Class 12

A field line is a locus that can be defined using a vector field and a starting location. This starting location can be found within the field. The electric fields are associated with imaginary lines known as electric field lines. The field line begins at the charge and ends either at the charge or at […]

Electric Field Electric field, an electric powered property related to every point in space while charge is found in any form. The magnitude and direction of the electrical field are expressed through the value of E, referred to as electric field power or electric powered field intensity or in reality the electrical field. Knowledge of

An electric dipole comprises two opposite charges separated by some distance (say d). An electric field can quantify the product of the magnitude of these charges with the distance of separation. We experience electric charges in our daily lives, such as we often rub our plastic scales on our hair, and then it attracts the

When exposed to a potential difference, an electrical conductor is a material or substance that permits current to flow. This electric current will keep flowing until there is a potential difference. The density of electric current in a conductor indicates the efficiency of a conductor for a given potential difference. Low resistivity/high conductivity materials and

A field line is a locus that experts define by a vector field and a starting location. The electric fields are associated with electric field lines. There are many properties of these lines. The most important property is that the field lines never intersect each other.  The discovery of the concept of electric field lines

The potential difference between the two points reflects the work or energy released in the movement of a unit quantity of electricity from one point to the other.  An electrochemical cell generates electrical energy from chemical reactions or uses electrical energy to create chemical reactions.  The potential of a cell is the amount of work

The electric charges (positive and negative) generate an electric field in their surroundings. The physical significance of these electric charges is of two categories: under static conditions and electromagnetic non-static conditions. Coulomb’s law deals with the force between these two electric charges. An example of an electric field is in the atoms. The electric field holds the components

The photo dember effect comes from the asymmetric diffusion capability of photoexcited electrons and holes that creates a transient space associated with charge distribution and thereby building up the voltage as well. Generally, a strong photo dember effect is seen in semiconductors with a huge asymmetry in the electron and hole motion, like in GaAs

We can say that a dipole is a pair of opposite charges with equal magnitudes and they are separated by a distance d. We can assume two charges with equal magnitude Q and they both are separated by a distance D. At this point, we can assume that the first charge is negative, and the

A charged particle is any object that has gained or lost electrons. Positively charged particles and negatively charged particles are the two primary forms of charged particles. Cations are positively charged particles, whereas anions are negatively charged particles. Objects like paper, comb, and straw can attract other objects while rubbing. Rubbing can change the properties