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A nonconducting disk has a radius R, carries a uniform surface charge density s, and rotates...

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Physics

A nonconducting disk has a radius R, carries a uniform surfacecharge density s, and rotates with angular speed w.

(a) Consider an annular strip that has radius ?, width ??, andcharge ??. Show that the

current produced by this strip is ?? = ?????.

(b) Show that the net magnetic field at the center of the diskis ?)???⁄2.

(c) Find the magnetic field on the axis of the disk, a distancez from the center.

Answer & Explanation Solved by verified expert
4.5 Ratings (690 Votes)
a Consider an annular strip that has radius width and charge Show that the current produced by this strip is Let us imagine that the strip has a radius rand the width drIf the surface charge density is then    See Answer
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