Force between Parallel Conductors

Chapter 5.7 Force between Parallel Conductors

Fundamental Electrical and Electronic Principles Third Edition Book
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Fundamental Electrical and Electronic Principles Third Edition Book

  • 156Fundamental Electrical and Electronic Principles 5.7 Force between Parallel Conductors When two parallel conductors are both carrying current their magnetic fi elds will interact to produce a force of attraction or repulsion between them. This is illustrated in Fig. 5.17 . attractionrepulsion Fig. 5.17 d Fig. 5.18 In order to determine the value of such a force, consider fi rst a single conductor carrying a current of I ampere. The magnetic fi eld produced at some distance d from its centre is shown in Fig. 5.18 . In general, HNI ampere turn/metre but in this case, N 1 (one conductor) and 2 d metre (the circumference of the dotted circle), so HNId2