The New book of knowledge, Volum 11An illustrated encyclopedia containing over 9,000 articles on history, literature, art and music, geography, myths and legends, mathematics, science, hobbies, holidays and festivals, games, sports, crafts, medicine, law, government, industry, politics, and other topics. |
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Side 32
It hangs over a coil of wire. If the ground moves, the coil moves with it. The motion
of the coil under the unmoving magnet generates an electric current. The type of
instrument you see in the diagram is called a photographic seismograph ...
It hangs over a coil of wire. If the ground moves, the coil moves with it. The motion
of the coil under the unmoving magnet generates an electric current. The type of
instrument you see in the diagram is called a photographic seismograph ...
Side 131
If a core of soft iron is placed within the coil, the lines of force become much
stronger. The discovery of the magnetic effects of coils made it possible to
measure electrical currents. The first simple instrument for this purpose was
called a tangent ...
If a core of soft iron is placed within the coil, the lines of force become much
stronger. The discovery of the magnetic effects of coils made it possible to
measure electrical currents. The first simple instrument for this purpose was
called a tangent ...
Side 132
The coil was connected to a galvanometer, an instrument for measuring Below,
left: Michael Faraday, discoverer of magnetic induction. Right: Moving a magnet
in a coil of wire produces an electric current in the coil. Current flows in the coil ...
The coil was connected to a galvanometer, an instrument for measuring Below,
left: Michael Faraday, discoverer of magnetic induction. Right: Moving a magnet
in a coil of wire produces an electric current in the coil. Current flows in the coil ...
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Bibliografisk informasjon
| Tittel | The New book of knowledge, Volum 11 The New book of knowledge, ISBN 0717205207, 9780717205202 |
| Utgave | illustrert |
| Utgiver | Grolier, 1986 |
| ISBN | 0717205177, 9780717205172 |
| Lengde | 21 sider |
| Eksporter sitat | BiBTeX EndNote RefMan |