Electricity

Suppose a loop or coil of wire like the picture (a) is used between the two poles of a magnet. As the loop has returned…

Each of the power stations generates a definite amount of electric power. The electricity generated by all the power stations is added in the national…

We know, electrical energy is produced in power stations situated at different places. The electricity thus generated has to be transmitted at different places according…

We have to pay for the electrical energy we utilize in our houses, shops, mills and factories. There is an electricity meter in the houses…

When a potential difference is applied between the two terminals of a conductor, an electric current is set up. Due to this, work is done…

When several resistances are connected in such a way that one terminal of all the resistances is joined at a common point A and the…

Sometimes several resistances are connected together for different purposes. A connection of more than one resistance together is called a combination of resistances. Equivalent resistance:…

We know that current carrying wire produced a magnetic field of its own. There happen action and reaction between magnetic field existing inside the opposite…

From these two experiments, it is observed that the deflection of the galvanometer proves the existence of an emf. So if we move a magnet…

Many scientists tried to invent electric current from the magnetic field when Oerested invented electromagnetic effect. Among the scientists who worked on this subject, Michael…