Physics

Students kit Electrical energy sources


For school experiments involving sources of electrical energy, which can be carried out within the time frame of a single lesson.
The equipment is designed to be particularly simple and easy to understand and can be handled with ease by groups of pupils in the first year of secondary school.
As an indication of the electrical energy generated a voltage indicator is provided.
 
The principles of electrical generation from the following sources can be illustrated:

  • Radiant energy – solar cell
  • Chemical energy – galvanic cell
  • Mechanical energy – induction coil
The picture shows a red box equipped with materials for experiments. The items included include a flashlight, batteries, copper wires and various connectors that can be used for school experiments.
The picture shows a red box equipped with materials for experiments. The items included include a flashlight, batteries, copper wires and various connectors that can be used for school experiments.
The picture shows a red suitcase filled with experimental materials on the topic of electrical energy sources. It contains batteries, a solar cell, cables, a measuring device and instructions describing how to use the materials.
The picture shows instructions for an experiment set on the topic of "Electrical energy sources". It contains information on handling and didactic use of the device, which is shown with connecting wires and a small bowl.
The picture shows an experiment kit that contains various components including a solar cell, batteries, a glass tube and other materials arranged in a foam-padded container. This equipment is suitable for educational purposes in the field of science.
The picture shows an experiment kit with various components, including a transparent tube and copper wire, in a padded compartment. Above it is a document with the Cornelsen logo, which indicates the supplier of the material.
The picture shows an experimental setup with two red cables connected to a power source with a measuring device. In a person's hand is a transparent tube with a copper wire winding, which is part of the experiment.
The image shows an experimental setup where a blue flashlight is pointed at a solar panel connected to red cables. In the middle is a meter for displaying electrical values, visualizing the connection and the functioning of the system.
The picture shows an experiment set with two red cables, a multimeter for measuring voltage and a small plastic bowl equipped with a copper and a metal plate. Next to the set is a small glass of citric acid that can be used for chemical experiments.

item number 23030

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The students observe the relationship between energy supply and current. The experiment makes it clear that the solar cell only converts energy, but does not store it.


The students can be informed that all batteries and accumulators employ similar chemical processes to generate electrical energy for circuits. A battery is said to be “dead” when the chemical reactions in it have ceased, e.g. because the substances arising from these reactions have fully sealed the plate surfaces.


Students should recognize that the nature of this energy conversion is different in principle from the other two types of conversion.


  • 1 × Copper wire varnished, 0,25 mm Ø (60 m)
  • 1 × Torch for 2 x R6
  • 1 × Magnet rod Alcomax 75x10
  • 1 × Plastic box R3 260x197x55 mm
  • 1 × Zinc electrode, angled
  • 1 × Foam insert R3 260x200x35 mm
  • 1 × Plastic tube with 2 rings
  • 1 × °Glass with citric acid
  • 1 × Felt board strips, 10 pcs
  • 1 × Lidfoam R3, grey 260x200x10 mm
  • 1 × Plastic dish 95x62x20 mm
  • 1 × Solar cell
  • 1 × Carton for plastic box R3270x230x55 mm (int.dim.)
  • 1 × Copper electrode, angled
  • 2 × Crocodile clip, bare
  • 1 ×
  • 2 × Plug lead, 25 cm, red