﻿ 导线中交流电场时间延迟的测定

# 导线中交流电场时间延迟的测定Measurement of Time Delay of Alternating Electric Field in Wires

Abstract: AC electromotive force generates a potential difference and a longitudinal electric field in a circuit. The longitudinal electric field drives the electrons, and forms a current. Longitudinal electric field is non-localized. Due to the distributed self-inductance of the metal wire, it generates a time delay. This paper gives the results of preliminary measurements of time delay of low-frequency AC electric field. Experimental results show that, in less than 3 MHz frequency region, the speed of longitudinal electric field is more than 20 times of the speed of light.

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