[問題電場強度問題?
find the force between a charged circular loop of radius b and uniform charge
density?l and a point charge Q located on the loop axis at a distance h from
the plane of the loop. what is the force when h>>b, and when h=0? plot the
force as a function of h.
如何解?拜託很急
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11/02 23:56, , 1F
11/02 23:56, 1F