An elementary book on electricity and magnetism and their applications (1919)
Jackson, Dugald C. (Dugald Caleb), 1865-1951, Jackson, John Price, b. 1868, Black, Newton Henry, b. 1874 · New York, The Macmillian Co · leaf 639
3 feet long with an induction coil, as shown in figure 569 570 ELECTRICITY AXD MAGXETISM To Vacuum Pump 423. The tube is connected with a vacuum pump by a side tube. When the coil is first started the discharge takes place between x and y, the terminals of the coil,which are only a few… … Fig. 423.—Discharge in partial vacuum. 384. Discharges in partialvacua. Reducing the atmos-pheric pressure between two points makes it easier for an elec-tric discharge to pass, until a certain point in the exhaustionis reached. Then it begins to be more difficult. At the veryhighest degree of…
Electricity · Magnetism
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