Making an electrical circuit is not an overly complicated task. On the contrary, it turns out funny, pedagogic and above all useful. A electrical circuit It can serve many purposes, and when completed, you will surely find the solution to a problem back home.

Do a electrical circuit, consists of combining a series of elements, connected to each other, which have the capacity to generate, transport and conduct electricity from one conductor to another, so that this electricity produces an effect.

how to start an electric circuit

It is important to understand that a circuit is a closed path through which electrons pass freely. An electrical circuit, in its most basic construction, contains a Power sourcecan be a battery -, cables and an resistance – a lamp performs this function -.

The electrons, leaving the power supply, make a journey to enter the lamp turning it on when the amount of current is indicated. Let’s take a look at the steps in creating an integrated switching electrical circuit that can perform multiple functions.

How to make an electrical circuit | materials

To build a simple circuit we will need tools such as, cable cutter, scissors and electrical tape. Regarding the materials, we will need: The power supply, which can be a battery or a series of batteries (with their respective compartments), a lamp, a plug, an electric cable, a lamp holder and a switch.

Recommendations for the choice of materials:

  • For the choice of bulb, take into account the amount of energy emitted by the battery. If the battery emits too much power, the bulb will explode, if not, the bulb will not light up or it will light in a very limited way.
  • To simplify the binding process, we can use pre-connected wire connectors and 9 volt battery or battery.

Next, let’s see the step by step necessary to make an electrical circuit.

How to make an electrical circuit step by step


The first step is to remove the ends of the insulated cables. For the circuit to function normally, the wires must be fully exposed. To do this, the protection covering their ends must be removed. With the wire cutter, you remove an inch of insulation from each end.


If this tool is not available at home, you can use the scissors, applying very little pressure. If you use too much force, you will also cut the wire of the cable and have to redo it.

Insert the battery (s) into the compartment spaces, taking care to place the positive and negative sides in the correct direction. Remember that a single compartment can hold multiple batteries.

Secure the cables to the battery compartment. The wires conduct the electric current from the batteries to the lamp. The easiest way to connect the wires is to use electrical tape. Place the end of a wire on one side of the battery, so that the surfaces are in contact with each other. Repeat the process with another cable, on the other side of the battery.

You must have great care when creating this tour. Although unlikely, there is the possibility of receiving a small shock if the cable is touched directly, while it is connected to the battery. To avoid accidents, just be careful to touch only the insulated parts of the cable, or install the batteries at the end of the process.

Secure the other end of the cable to the metal screw located at the base of the lamp. Take the exposed metal part of each of the wires and bend it into a “U” shape. Loosen the screws on the base of the lamp just enough to slide the wires around them as shown.

Every cable you need connect to another screw. Then you tighten to secure the metal wire so that it is still in contact with the surface of the screws.

Just subtract test the circuit. When placing the bulb, it should light up. Otherwise, it is necessary to review the complete cycle again.

How to make a direct current electrical circuit

Direct current is that in which the electrons move in the same quantity and in the same direction. Also known as direct current, it is characterized by invariable polarity and is usually generated by batteries.

Direct current is used by mobile electronic devices, which require small amounts of energy to operate and do not use polarity changes.

The circuit, on which we describe the development process step by step, in the first part of this text, a clear example of a direct current electric circuit.

How to make an electrical circuit with alternating current


In a circuit with alternating currentUnlike our previous example, electrons move alternately in different directions, with the polarity alternating as well. This type of current is used to power household and industrial appliances, such as refrigerators, washing machines, kitchens …

The construction of an AC circuit is much more complex than that of its DC counterpart. For this reason, I prefer to explain it to you with this video tutorial, in which you will learn how to develop a circuit that drives an AC motor:

If you have studied the video before, you will have noticed that there is a noticeable difference in difficulty and required elements between building a DC circuit and an AC one. For this reason, it is likely that you will have to revisit the topic, for which I leave you with a different instruction manual, in which, with home resources, you can make an AC powered motor. Hope you like it and based on these tutorials you can develop some very interesting and useful projects. See you next time.

How to make an electrical circuit for children

We have already seen how you can make an electrical circuit at home, using direct current or alternating current, but your children may need to make their own electrical circuit as part of a school task so that they can easily learn how electricity works.

This way we can help you by making a very basic electrical circuit and that it can also be original.


  • Bulb;
  • wood;
  • lamp sockets;
  • drums;
  • electric cable;
  • insulating tape;
  • switch.

We started by cutting a piece of wood (20 × 20 is enough) and now, screw the lamp holder, followed by the switch and the battery.

Take the cable and connect it in series. That is to say positive pole of the battery to the switch, and from there to the lamp holder. Now you take it from lamp holder at the negative pole of the battery.

Now we will need to test the circuit and verify that it is working properly with the bulb on once we flip the switch.

This is a direct current children’s electrical circuit that is without a doubt the simplest one can do, although you want to be able to get a circuit which is something more original as explained, we can do the following.

Original electrical circuits for children

Who says electrical circuits always have to be the same? The main thing is what was explained in the previous point on how to make an electric circuit for children, but once assembled, you can make a thousand and one creations with which to bring a touch of originality.

This way if your kids need to make an electrical circuit for school, they can make a continuous like the one explained, but from there make some kind of decoration to turn the light or bulb on or off.

In this way we can make, for example, a circuit in which our the bulb is covered with a long cardboard so that it becomes a kind of headlight and for example, we can cover the rest with foam paper or cardboard as if they were stones around this lighthouse.

Another way to get an original electrical circuit is to paint all the wood as if it were the floor of a disco, place some toys on top, hide (with paint) the wire and switch and leave the socket and bulb in the center for everyone to dance around that light.

You can also ask the children to paint the wood as if it was him body and face of a clown. You leave the lamp holder and bulb in the center and the rest you paint and draw by shaping this clown with his luminous nose (bulb).

Another children’s electric circuit model that is original is to paint the wood as if it were a cfootball field, place small dolls as players, two goals, and you leave the bulb at one end For it to be the light that illuminates the entire field when played at night, what is an original idea?

The possibilities are numerous and once we have made and tested our electrical circuit, the children will surely find many other ideas to decorate it.

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