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

There are tasks, tips and solutions on the following topics:
- Particles in longitudinal electric fields
- Particles in electrical transverse fields
- Millikan attempt
- linear accelerator
- How an inkjet printer works


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.