Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 430
ilings may be shown bypassing a thick wire vertically upthrough a hole in a card, and sprink-ling iron filings from a nnislin bag onthe card. If the card is gently tappedwhile a strong current is passingthrough thewire, the filingsarrange them-selves in con-centric rings about it. (Fig. 501.) If a… … Fig. 501.—The presence of a mag-netic field about a wire carryingan elettric current shown byaction on iron filin>rs.
Physics
Internet Archive · Western University Libraries · Public Domain Mark 1.0. Free to use for anything.
