LC circuit
| Experiment | RC circuit |
|---|---|
| Category | Magnetism |
| Used sensors | magnetometer |
The magnetic sensor is used to display the magnetic field of a coil in a RC circuit.
Requirements and experimental material
In this experiment a very simple LC circuit is created with a coil and a capacitor. To measure the magnetic field the coil has to have a low resistance and a high inductance. Such coils can be bought in audio supply and can be a bit expensive. The used coils for this experiment can be found at [1] and [2]
- smartphone (with phyphox-app and magnetic sensors)
- a coil with low resistance and high inductance (for more information see paper)
- some capacitors between 470uF and 22.000uF
- a battery (9V) or power supply
Setup
The capacitor is charged with a battery or power supply and then shortened with the coil (directly connected to the coil). The phone is placed on the coil (the z-axis of the magnetometer points "into" the core of the coil). Due to the high sensitivity
Examples
TODO
Paper, and work sheets
The experiment was developed in a thesis for education students (Staatsexamensarbeit) at the University of Konstanz. The results where published in an open access paper [3], where a lot of additional information can be found.
Work sheets in German where developed and can be found here. TODO
