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AP® Physics C: E & M

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Moderate

Connecting Wire: Isolated Conducting Sphere

APPHEM-Y1VAXP

An isolated conducting sphere with a radius $r$ is charged to $+Q,$ then a second conducting sphere, with a radius $r/2$ is attached to it with a wire. The spheres are much further apart than their radius.

Which is true about after they are combined for a few seconds?

Created for Albert.io. Copyright 2016. All rights reserved.

A

The spheres each have the same amount of charge $+Q$.

B

One sphere has a charge of $+Q$ the other has a charge of $–Q$.

C

Both spheres have the same electric field coming off of it.

D

Both spheres are at the same potential.

E

Both spheres have a charge of $-Q$.