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Specific Inductive Capacity

المؤلف:  GEORGE A. HOADLEY,

المصدر:  ESSENTIALS OF PHYSICS

الجزء والصفحة:  p-330

2025-11-27

567

The quantity of electricity that can be given to a body by induction depends upon the extent of its surface, the distance between it and the inducing body, and the character of the dielectric that separates them. The property that dielectrics have of transmitting electrical induction is called their specific inductive capacity. The specific inductive capacity of air is taken as unity, and that of a few other substances is shown in the following table

Demonstration. - Suspend a charged ball at a fixed distance above the knob of an electroscope and observe the divergence of the leaves. Introduce between the ball and the knob a cake of paraffin, or a plate of glass, first making sure that it is not electrified, and notice the change in the divergence of the leaves.