Specific Inductive Capacity

Abstract

ON p. 669 of Ganot's “Physics” (eleventh edition) the following statement is found:— “At a fired distance above a gold-leaf electroscope, let an electrified sphere be placed, by which a certain divergence of the leaves is produced. If now, the charges remaining the same, a disk of sulphur or of shellac be interposed, the divergence increases, showing that inductive action takes place through the sulphur to a greater extent than through a layer of air of the same thickness.”