Modern Electrical Construction: A Reliable, Practical Guide for the Beginner in Electrical Construction, Showing the Latest Approved Methods, of Insta
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Excerpt from Modern Electrical Construction: A Reliable, Practical Guide for the Beginner in Electrical Construction, Showing the Latest Approved Methods, of Installing Work of All Kinds According to the Safety Rules of the National Board of Fire Underwriters
It is the ¿ow of electricity or air which takes place when switches or valves are operated and which tends to equalize this pressure, i. E., ¿ow from high to low pressure, that does our work. The real energy, however, (so far as we are con cerned), to which. We must look for our initial motion in either case is derived from the coal which generates steam, or, in the case of water-driven machinery, the rays of the sun which evaporate water, allowing it to be carried to higher levels, from whence it ¿ows downward over dams and falls on its way back to the lowest level. In the battery, the real energy is that of chemical action, which is transformed into electrical energy.
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