Energy absorption in dielectric–dispersed conductor compositions versus signal frequency

The resistivity of a number of dielectric–conductor composites as a function of applied voltage frequency has been studied for frequencies less than 1 MHz. It has been shown that the frequency dependence of the resistivity of dielectric–conductor composites containing a nonmagnetic material is low, being limited by the skin effect, whereas the resistivity of ferromagnet-containing composites decreases by one to two orders of magnitude with rising frequency.