# Tagged: Electric charges

## Kirchhoff’s first law , Kirchhoff’s second law & how to solve problems of Kirchhoff’s laws

Kirchhoff’s Laws Some electric circuits consists of many branches and are too complicated to be managed by Ohm’s law because the electric current passing through them is different in each branch , For such...

## Ohm’s Law for the closed circuit , Relation between emf ( VB ) of an electric cell & voltage across its poles

Ohm’s Law The emf of an electric cell ( battery – source ) is the total work done inside and outside the cell to transfer electric charges in the electric circuit , If we...

## Electrical current , Potential difference , Electric resistance and Ohm’s law

The electric current is a flow of electric charges through a conducting material , The electric current flows from the positive pole to the negative pole outside the source & it is called the...

## Hydroxy compounds , Rules for calculating the oxidation numbers

The oxygenated acids ( acids contain oxygen ) and bases are considered as hydroxy compounds , They can be represented by the general formula ( MOH ) , where M is the element atom...

## The sources and types of the electric current

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 are...

## Electric potential difference and the electromotive force

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...