Project Gutenberg #4710
The Story of Electricity
John Munro
1902Munro's popular history of electrical science and its early applications, prepared chapter by chapter from Project Gutenberg HTML.
Project Gutenberg #4710 Public domain in the United States Cover source Local typographic cover created for MojiMori from public-domain source metadata
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Missing dictionary data: 1 unique word is not in the dictionary data yet. Amber marks show where it appears.
UNIT CURRENT is that which in a wire of unit length, bent so as to form an arc of a circle of unit radius, would act upon a unit pole at the centre of the circle with unit force.
UNIT QUANTITY of electricity is that which a unit current conveys in unit time.
UNIT ELECTRO-MOTIVE FORCE or DIFFERENCE OF POTENTIAL is that which is produced in a conductor moving through a magnetic field at such a rate as to cut one unit line per second.
UNIT RESISTANCE is that of a conductor in which unit current is produced by unit electro-motive force between its ends.
UNIT CAPACITY is that of a condenser which will be at unit difference of potential when charged with unit quantity.
Electric and magnetic force varies inversely as the square of the distance.