Exploring Faraday's law
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Objective:
Experimental studies of the Faraday's law of induction.
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Michael Faraday, born in 1791, is considered one of the greatest
English experimental scientists. He had an enormous practical and
intuitive ability in physics. In 1832 he discovered that the electricity
could be produced by using magnets and magnetic field. This phenomenon is
called electromagnetic induction.
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The Faraday's law of induction is examined by observations of the electromotive
force (emf) induced in the coil by the oscillating bar magnet. The time
dependence of the magnetic flux density due to the moving magnet and time
dependence of the emf induced in the coil are studied. Exploration of the
emf dependence on the time rate of change of the magnetic field flux penetrating
the coil is used for examining the Faraday's law.