(II) A segment of wire of length d carries a current I
Chapter , Problem 41(choose chapter or problem)
(II) A segment of wire of length d carries a current I asshown in Fig. 28-49. (a) Show that for points along the positivex axis (the axis of the wire),such as point Q, the magneticfield B is zero. (b) Determine aformula for the field at pointsalong the y axis, such as point P.
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