Lessons in practical electricity; principles, experiments, and arithmetical problems, an elementary text-book (1902)
Swoope, Coates Walton. [from old catalog] · New York, D. Van Nostrand company · leaf 197
tween them through which the fibresuspension passes. The coil is completely enclosed from the atmos-phere, which assists in renderingthe instrument c?md-6mMn its action,i. e., so that the magnetic system may come to rest almost instantlywithout first making a number of vibrations when the circuit… … Fig. 163 —Thomson Mirror-Keflectiiig Galvanometer with Lamp, Stand, Scalenections of Apparatus for Measuring the Insulation Eesisiance of an Electric and Con-Cable. with leveling screws, and can be rotated on its vertical axis. Thecurved controlling magnet, arranged on the vertical tube, can…
Electricity · Magnetism
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