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  1. Z

    Ampere's law wire problem

    Hellow every one I have small Q but I stuck on it there is pic attached hope to be intersting and clear to you Homework Statement rank the loops accoroding to the current enclosed greatest first Homework Equations we have three eqn's B = u "node" I encِْْْْ B = u"node" i / 2 pi r...
  2. Z

    What is the phase difference ?

    Homework Statement When a wave travels through a medium, individual particles execute a periodic motion given by the equation : y = 4.0 sin[ pi/4(2 t + x/8)] where y and x in meters and t in seconds the phase difference at any given instant are 20.0 m apart is