Electricity for public schools and colleges (1891)
Larden, W. (Walter), b. 1855 or 6 · London : Longmans · leaf 45
^&^y … 11* Now iron filings do, by induction, become small magnetic Jieedles when they are placed in a magnetic field. Hence, if we CU. II. ^MECHANICAL AND MAGNETIC UNITS 19 place a magnet under a sheet of glass and scatter over the glassiron filings, tapping the glass to allow of arrangement, we…
Electricity
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
