. particles immediately in front of them causes the appara-tus to revolve rapidly in the direction opposite that indi-cated by the points. This reaction-mill is an analogueof the Barkers mill known in hydraulic physics. 15. The Electrostatic Field.— When a body is chargedwith electricity, a… … Fig. 11. emanating from the charged body. A line of force is^ aline drawn in an electric field such that at any point itsdirection is the direction of the electric intensity (§16)at that point. The field between two spheres is roughlyshown in Fig. 11. Such lines may be plotted experi-mentally by…
Electronics · Electricity
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