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Created for Albert.io. Copyright 2017. All right reserved.

A neutral metal sphere is set on an insulating stand. A negatively-charged plastic rod is brought close to but does not touch the metal sphere. While the rod is close to the sphere, someone touches the sphere with their fingertip.

Which of the following describes how charge moves between the person's finger and the sphere?

A

Electrons move from the metal sphere onto the person’s finger.

B

Electrons move from the person’s finger onto the metal sphere.

C

Protons move from the person’s finger onto the metal sphere.

D

Protons move from the metal sphere onto the person’s hand.

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