Grade 7 | Science | Electric circuit and symbols for electrical components, Electric current and its effects, Olympiad, CBSE, ICSE, SOF, ITO
An electric current is a flow of particles (electrons) flowing through wires and components. It is the rate of flow of charge. If the electric charge flows through a conductor, we say that there is an electric current in the conductor. In the circuits using metallic wires, electrons constitute a flow of charges.
The schematic diagram represents the different components of a circuit; this is the circuit diagram. These symbols represent the common electrical components.
The picture below shows a closed circuit diagram.