A pith ball is a small nonconducting ball covered with a uniform, conducting met

Question

A pith ball is a small nonconducting ball covered with a uniform, conducting metal foil. Initially pith ball A is charged negatively, pith ball B is neutral, and they small distance d apart. Now, the balls are brought together, touch, and then separated so they are again distance d apart. Which is true of the forces between the two pith balls? Before they touch they attract, after they touch they attract Before they touch they attract, after they touch they have no effect on each other Before they touch they repel, after they touch they attract Before they touch they have no effect on each other, after they touch they attract Before they touch they repel, after they touch they repel Before they touch they have no effect on each other, after they touch they repel Before they touch they repel, after they touch they have no effect on each other Before they touch they attract, after they touch they repel Before they touch they have no effect on each other, after they touch they have no effect on each other After this experiment, A is negative, B is negative A is negative, B is neutral A is positive, B is negative A is neutral, B is negative A is positive, B is neutral A is negative, B is positive A is positive, B is positive A is neutral, B is positive A is neutral, B is neutral Suppose two identical, solid conducting spheres are insulated: sphere A carries +4.02Q and sphere B carries -16.5Q. The two spheres now touch and are separated. What is the charge on sphere A now? Give the answer in terms of some number time Q.

Explanation / Answer

The two objects are attracted when both object brought together

This is is because the positive charge is created nearer side of the

Negatively charged object and positive charge is created on the second object

Farther side of first object.

After they separated, both are repel and both have negative charges.

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