The generation of current
Thin, freely moving iron needles are placed on a panel between the north and south poles of a powerful magnet; the magnetic field is clearly apparent. When a copper wire breaks the lines of magnetic force, an electric current is generated in the wire. Model cars illustrate that when a magnet is pl...
Princeton, NJ :
Films for the Humanities & Sciences,
|Series:||Introductory concepts in physics.
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