The metallic spheres A and B of radii 2m and 4m respectively carry the same charge 4 x 10 8C. If the spheres are connected by a copper wire_______________?
Correct answer: A. charge will flow from A to B
- A. charge will flow from A to B
- B. charge will flow from B to A
- C. no flow of charge will occur
- D. both a and b are possible
Explanation
The potential of an isolated charged sphere is V = kQ/R, so the smaller sphere A has the higher potential for the same charge. Conventional charge therefore flows from A to the larger sphere B when connected.
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