Electric Construction Set NK143 Young Electrician


Electric Construction Set NK143 Young ElectricianElectric sets, blocks and modules are popular all over the world. Their variety is great. Today we will take a look at the set called “Young electrician”. This is a simple construction set with instructions designed for beginners. All the connections are done without soldering. Components are connected either with the help of screws or simply by twisting. Detailed instructions for conducting experiments are included. A flat-type 4.5 V battery is used as the power supply. It should be purchased separately. Using this set, you can conduct a wide variety of experiments. These include:a simple electric circuit with a miniature incandescent bulb, electromagnetism, the influence of a live wire on the arrow of a magnetic compass, wireless transmission of electric signals (the so called Popov-Marconi transmitter), electric generator, self-made electric battery, and many other things.Let’s make several experiments using this remarkable set. As we have already said before, apart from the components of the construction set you will need a 4.5 V flat-type battery. You may also need a small spoon of table salt for certain experiments. Let’s detect electric current with the help of a compass. We assemble a circuit according to the instructions. We attach the coil that comes with the set to the compass. The arrow pointing to the North should be oriented along the coil. When we turn on the battery, the light bulb will be on and the arrow of the compass will turn perpendicularly to the coil. If the circuit is broken, the arrow will return to its previous position. This experiment shows how the current on the coil turns on a magnetic field. The arrow of the compass reacts to this field.Let’s assemble a self-made electric battery. To do so we’ll take a glass of water and dissolve a spoonful of table salt in it. Then we submerge a galvanised nail and a copper plate into the water leaving out the contact between them. The battery is ready. Now let’s connect the compass-ammeter to the battery. We will see that the arrow of the compass moved. This means our battery produces electric current.Let’s check electric conductance of water. We assemble a circuit following the instructions. Water can conduct electrical current if it is chemically impure. Let’s take a glass of salty water. Now we submerge skinned wire ends into the glass with water. Let’s assemble a simple circuit shown on the drawing. The miniature electric bulb will turn on and the arrow of the compass-ammeter will move. This means there is some current in the circuit.In the end we would like to mention, that this set will become a great visual training aid for young electricians.

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