ABSTRACT
We begin by considering a stationary charge q at r ′, which has the associated field (for an observer at r, and illustrated in Fig 6.1) of https://www.w3.org/1998/Math/MathML"> E = 1 4 π ϵ 0 q ( r − r ′ ) | r − r ′ | 3 , ( E ∝ 1 | r − r ′ | 2 ) , B = 0 . https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781351007962/e629f9f4-7401-4fce-bfdc-bbdb93c72c28/content/math6_1.tif" xmlns:xlink="https://www.w3.org/1999/xlink"/>
