Physics · May / June 2021 · Paper 12 · Question 31
A positively charged rod is held close to an insulated metal sphere. The sphere is earthed as shown. [diagram: rod with ++++ held near metal sphere connected to earth] The earth connection is removed and then the rod is removed. Which diagram shows the charges on the sphere after the rod is removed?
- Asphere with + + + + charges
- Bsphere with + + + + charges
- Csphere with – – – – charges
- Dsphere with – – – – charges
As printed in the paper
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Correct answer: C. sphere with – – – – charges
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