Principle

A permanent magnet drops through a coil with different velocities. The change in the magnetic flux generates an induced voltage pulse. It is shown that the total induced voltage during the entire fall is constant and therefore independent of the velocity. In respect to the magnet polarity, the induced voltage changes from plus to minus or vice versa.

Benefits


Intuitive, touch-optimized software that controls all devices simultaneously

Simplified implementation: all pre-settings already prepared

Fast and easy experimenting

Coil with several tappings for quick change of winding numbers

Investigate the influence of different falling velocities with high frequency/resolution measurements


Tasks


Observation of the induced voltage pulse during the fall of the magnet through the coil

Observation of the induced voltage for an inverted magnet polarisation

Evaluation of the influence of the number of windings on the induced voltage

Evaluation of the influence of the fall height on the induced voltage


What you can learn about


Induced pulse

Faraday’s law of induction

Maxwell’s equations

Magnetic flux

Magnetic flux density

Magnetic field lines


Operating system-independent software included. Computer not provided.