Each substance stores an amount of energy inside it , This amount of energy called the internal energy , This amount of energy is the summation of three types of energy which are the...
Sources of the electric current The electric current can be generated by different methods, The common sources are the generators (Dynamos) & the electrochemical cells (electrolytic cells), The electricity which you use in your homes is...
Electric potential difference of a conductor The electric potential of a conductor is the state of an electric conductor that shows the transfer of electricity to and from it when it is connected to another...
The electric conductivity The substances can be classified according to the electric conductivity into good conductors of electricity and bad conductors of electricity, The electrical conductivity is the ability of a material to carry...
The movement of electrons The electrons are negatively (- ve) charged particles, They revolve around the nucleus with very high speed, The electron has a negligible mass relative to that of the proton or...
The atom The atom is the fundamental building unit of the matter, and it is the smallest individual unit of the matter which can share in the chemical reactions, Boyle, Thomas, Rutherford and Bohr...
