Electricity for public schools and colleges (1891)
Larden, W. (Walter), b. 1855 or 6 · London : Longmans · leaf 183
seen. This needle is maintained ata high potential in somewhat thefollowing manner. From it therehangs a platinum wire, dipping intoa glass vessel that contains strongsulphuric acid. Outside this vesselis a coating of tin-foil, so that it isin fact a Leyden jar. Its capacitybeing very great as… … Fig. CH. X. ELECTROSTATIC POTENTIAL 157 The usual lamp and scale arrangement gives us, in the reflectedspot of light, a very sensitive means of noticing and measuring thedeflexions of the needle. Complete form of the quadrant electrometer.—In the completeform of Sir W. Thomsons quadrant…
Electricity
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