When the supply is given to the rectifier through a step down transformer, it converts the AC supply into DC supply and this flows to the battery, thereby charging it. Resistance is added in the circuit to limit the flow of current. The rectifier shown in the diagram is the bridge rectifier, which has four diodes connected in the form of a bridge. The main function of the rectifier is to convert AC (alternating current) into DC (direct current). Battery Charging Circuitīattery charging is done by means of a rectifier. In case you want to change the lamp, don’t forget to switch OFF the lamp and if possible disconnect the power supply to the circuit. The switch wire and live wire are a single wire it is just cut in between to connect the switch. For safe operation this wiring is placed in a box called a switch box. If the switch is ON, the electric circuit is closed and the lamp glows, and if the switch is OFF, it will disconnect the power supply to the lamp. For switching ON and OFF the lamp we need a control called a switch - provided in the live wire between the main supply and lamp.
The universal practice is to use the colour red for live wires and a black colour for the neutral wire. It is advisable to use different colours for live wires and neutral wires. These two wires are connected from the lamp to the main supply panel. AC Circuit for Lampįor a lamp we need two wires one is the neutral wire and the other is the live wire. In this article we give the drawings for some simple electric circuits: AC lighting circuit, battery charging circuit, energy meter, switch circuit, air conditioning circuit, thermocouple circuit, DC lighting circuit, multimeter circuit, current transformer circuit, and single phase motor circuit. Therefore, a better way is to learn how to show simple electrical circuits. For example, if you want to explain a lighting circuit, it can take more time to draw the bulb, battery, and wires because different people draw various components of the circuit in different ways and this may take a long time to explain. If you are trying to describe an electrical circuit to your friend or neighbor, it is likely that you have to draw the connection. An electrical circuit is a closed loop in which continuous electrical current goes from the supply to the load. We know that electric current flows in a closed circuit. From homes to big industries, we all depend on electricity. Daily life on the earth is nearly impossible without electricity.
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