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| Biographical note | ||
| Documents | ||
| Experiment | ||
| Chronology | ||
| Scientists index | ||
| Bibliography | ||
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| 1821 Electrodynamics | |||
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| Newington
Butts (London)
22.September.1791-Hampton Court- London
25.August.1867
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| | Land
searches that more made of Faraday insigne the scientist experience
them of its times were the fields of the electricity and the
magnetism. After the discovery of Oestered of
electromagnetism
of 1819, Faraday reproduced the experiment in
1821
and deepened the studies in this field, after ten years of
job
discovers the electromagnetic induction. The announcement was given 24
November of 1831. Faraday reached its discovery round
wrapping to
a iron ring two distinguished coils. Induced circuit
connected to
the heads of one coil () a galvanometer, and to the heads of the other
(circuit inducer) one battery electrical
worker; closing the circuit of
the battery the
needle of the galvanometer moved in a sense and
opening the
circuit moved in the
inverse sense. Subsequently Faraday discovered that introducing or
extracting a magnet from a wrapped conductor to
coil,
connected to a galvanometer he came produced a movement of
the
index, in practical came produced one small current electrical
worker, was
successful to obtain
one current electrical worker from a
magnet, to
induce electricity being used
of a
magnet. He understood endured that the
production
of currents induced
in a circuit
was not sufficient the presence of the magnet, but
was
necessary its movement, the variation of the induced magnetic field. For a reason or purpose informative it marks itself that also Cavendish had already carried out much research work executed from Faraday but has not never diffused its searches. |
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to cure of the Medium School of Calizzano (Sv) (the secrets
of the electricity.) | |||
 | |||
The
basic
experiment in order to understand the electromagnetic induction is
this: Introducing a magnet in a coil a current impulse is obtained. If
the magnet remains firm the current it vanishes. Extracting the magnet
an impulse is produced newly, of towards contrary to the first one. In
order to generate one current is indispensable a
variation
of the magnetic field that enters in the coil. |
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Michael
Faraday