NCERT Solutions for Class 7 Physics Chapter 4 Electric Currents and Its Effect

Electric current is defined as the rate of flow of negative charges of the conductor. In other words, the continuous flow of electrons in an electric circuit is called an electric current. When an electric current flows through a conducting wire, the temperature of wire increases, this is called the heating effect of electric current. Devices Which Work on Heating Effect of Electric Current: Incandescent bulb is an example of a device which works because of the heating effect of electric current.