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A current I is running uniformly toward the positive z direction on a long thin plate lying on the x-z plane with wider width w.
(a)Find out the magnetic field at a place very close to the center part of the plate. (b)If this plate is bent to form a cylinder centering at the z axis with radius r=w/2pi, what will be the magnetic field inside and outside this cylinder?
沒遇過這類題目,不知道要從哪裡下手, 請大家幫忙,謝謝!!
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