The theory of the magnetic effect of electric current was discovered by H.C Oersted in 1820. This concept actually shows that the flow of an electric current through a conductor produces a magnetic field around it. The magnetic effect of …
1. What is dispersion? How is it caused? The phenomenon of the separation or splitting up of composite light into its constituent colours is called dispersion. Dispersion is caused on account of different refractive indices of the medium for different …
Chemical reactions are the processes in which new substances with new properties are formed. And there are several types of chemical reactions, of which some of important types are mentioned below. Combination reactions Decomposition reaction Displacement reactions Double displacement reactions …
Chemical reactions are the processes in which new substances with new properties are formed. Only a rearrangement of atoms takes place in a chemical reaction. The substances which take part in a chemical reaction are called reactants. The new substances …