File:Electrostatic Voltmeter operating principle.jpg
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Scanned from the book "Elementary Lessons in Electricity and Magnetism" by Silvanus P. Thompson. 1905 Edition
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|current||06:52, 18 December 2010||660 × 984 (142 KB)||Williamgelbart||Scanned from the book "Elementary Lessons in Electricity and Magnetism" by Silvanus P. Thompson. 1905 Edition|