Question: Problem 5.47 Find the magnetic field at a point z > R on the axis of (a) The rotating disk and (b) The rotating sphere,

Problem 5.47 Find the magnetic field at a point z > R on the axis of

(a) The rotating disk and

(b) The rotating sphere, in Prob. 5.6.

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a The total charge on the shaded ring is dq o2nr dr The time for one revolution is dt 2xw So the cur... View full answer

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