Physics · May / June 2022 · Paper 11 · Question 28
Two metal spheres are mounted on insulating stands. Sphere X is initially uncharged and sphere Y is initially positively charged. A metal rod, held by an insulating handle, is placed in contact with X and Y as shown. [diagram: two metal spheres X and Y on insulating stands, connected by a metal rod held by an insulating handle] What are the charges on X and on Y after the rod is placed in contact with them?
- Apositive / positive
- Bpositive / uncharged
- Cuncharged / positive
- Duncharged / uncharged
As printed in the paper
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Correct answer: A. positive / positive
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