Charge by Contact: Net Charges on Each Sphere?

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SUMMARY

The discussion centers on the concept of "charge by contact" involving two uncharged spheres and a negatively charged rod. When the rod touches the left sphere, it transfers electrons, resulting in the left sphere becoming negatively charged. The adjacent sphere, which does not touch the rod, also becomes negatively charged due to the redistribution of charge when the spheres are in contact. Upon separating the spheres, both retain a net negative charge.

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Homework Statement


Two uncharged spheres are touching (they are held by insulating stands). A negatively charged rod touches the sphere on the left. After, rod is taken away and the adjacent sphere (the one that the rod did not touch) is separated. What are the net charges on each sphere?


Homework Equations





The Attempt at a Solution


After rod is taken away, the 0 charge restores to each spheres touching even before the second sphere is separated from the first that was touched by the rod. OR. the sphere that was touched by the rod is + charged becaused of charging by contact and second sphere that is moved is negatively charged. Which explanation (if any is correct) is right?
 
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Sorry, both are wrong.

This was "charge by contact." The negatively charged rod has transferred electrons to the spheres. So what net charge is on the spheres? (the rod is taken away first, so no electrons are jumping back).
 
Chi Meson said:
Sorry, both are wrong.

This was "charge by contact." The negatively charged rod has transferred electrons to the spheres. So what net charge is on the spheres? (the rod is taken away first, so no electrons are jumping back).

Are they both negatively charged because of the electrons transferred?
 

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