Heating effect : When an electric current flows through a conductor, the flow of electron is opposed by the resistance of conductor and heat is produced. Joules law of heating. It is utilized in electric irons, water heaters, Hot plates, electric lamps etc.
Chemical effect : Whenever a DC current is passed through a chemical solution, the solution is decomposed into its constituent substances. It is utilized in the electrolytic processes such as electro-plating, electro-refining, in production of different chemicals etc.
Magnetic Effect: Whenever a conductor carries electric current, the magnetic field is produced. If the conductor is a straight conductor, the magnetic field is produced round the conductor itself. If the conductor is in the form of coil or winding (solenoid) wound over the core, the magnetic field is produced in the core.