Gerard, Eric Mary, 1856-1916 · New York W.J. Johnston · leaf 206
the electromagnetic force. If the thumband first two fingers of the left hand be pointed in threedirections perpendicular to each other, pointing the foreand middle fingers respectively in the direction of themagnetic lines of force and the current, then the thumbpoints in the direction in which… … Fig. 65. The electromagnetic force tends to displace the elementd^ perpendicularly to the plane /, ds following a directionaf. If the element moves in a direction ag, the work per-formed during a displacement d^= ag is equal to the prod-uct of the force by the projection of the displacement…
Electricity · Magnetism
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
