This app is aimed at schoolchildren who are looking for further and sometimes more demanding tasks in electrical engineering and electronics with detailed solutions.

There are tasks, tips and solutions on the following topics:
- Electrical energy and power
- Electricity cost calculations
- Resistance calculations in parallel and series connections
- Resistance calculations in mixed circuits
- Calculation of internal resistances of batteries
- Specific resistances



With each processing, new values ​​are always found in the tasks, so that it is worth repeating the task.

Tips and a theory section help you work on each task. After entering a result, it is checked. If it is correct, points will be awarded depending on the level of difficulty. A sample solution can then also be viewed.

If the result obtained is incorrect, it is recommended to repeat the task.