An electric current I enters and leaves a uniform circular wire of radius a through diametrically opposite points. A charged paricle q moving along th

An electric current I enters and leaves a uniform circular wire of radius a through diametrically opposite points. A charged paricle q moving along th
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An electric current I enters and leaves a uniform circular wire of radius a through diametrically opposite points. A ... `qv(mu_(0)i)/(a)` D. zero
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