Solenidu magnetic field with the flow
This experiment demonstrates the magnetic field coil with a long stream - solenoid.
Educational phase: motivation
- Model solenoid
- metal filings
- connecting wires.
The coil wire is twisted into threads. Magnetic fields from individual coils are made and inside the coil creates a magnetic field that is homogeneous and has a coil axis direction. The field is homogeneous the better the coil is longer.
The direction of magnetic field lines thread or coil is determined Ampérovým right-hand rule: We take a coil in the hand so that the bent fingers pointing direction of the current in the coil. Deflected the thumb indicates the direction of field lines inside the spool.