(along the same line that contains +<2 and Q), the
Chapter , Problem 67(choose chapter or problem)
(along the same line that contains +<2 and Q), the electricfield has magnitudeE = 1 2p47re0 r3for r (Fig. 21-45), where r is the distance from an o in t to th e ce n te r o f th e d in o le . (h \ Tn w h a t d ire c tio n does
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