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AP® Physics 1 & 2

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Moderate

Charged Electroscope

APPH12-N4EWKL

Consider the electroscope shown in the image. The electroscope has an equal number of freely moving negative and positive charges.

Which of the listed procedures will result in a negatively charged electroscope?

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A

Bring a negatively charged rod near to, but not touching, the metal sphere.

B

Bring a positively charged rod near to, but not touching the metal sphere.

C

Touch a negatively charged rod to the metal sphere, then remove the rod.

D

Touch a positively charged rod to the metal sphere, then remove the rod.