Technical data Self-induction when switching a circuit onArticle no: P1377000 ![]()
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Principle The students know that voltage is induced in a coil as long as
the magnetic field inside the coil varies. They are familiar with
electromagnets and, therefore, know that a coil with a current
flowing through it produces a magnetic field and they know the
factors responsible for the strength of the magnetic field. Benefits
Tasks What effect does a coil in a direct current circuit have when the circuit is closed? Investigate the effect of a coil installed in one of the branches in a parallel circuit of two filament lamps.
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