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(B) When a positively charged glass rod is brought near an uncharged metal sphere,the free electrons in the metal are attracted toward the rod,creatin

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(B) When a positively charged glass rod is brought near an uncharged metal sphere,the free electrons in the metal are attracted toward the rod,creating a redistribution of charge (polarization).However,the sphere remains electrically neutral as a whole because no charge is added to or removed from the sphere.Since the sphere is mounted on an insulated stand,there is no path for charge to flow to or from the ground.When the glass rod is removed,the redistributed charges return to their original positions,and the net charge on the metal sphere remains zero.

$A$ positively charged glass rod is brought near an uncharged metal sphere,which is mounted on an insulated stand. If the glass rod is removed,what is the net charge on the metal sphere?

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