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WBJEE 2022 Physics and Chemistry Paper

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Question : 4

Total: 80

Consider two concentric conducting sphere of radii R and 2R respectively. The inner sphere is given a charge +Q. The other sphere is grounded. The potential at r=‌

is

‌
1
4πε0
‌
Q
6R
0
‌
1
4πε0
‌
2Q
3R
‌
1
4πε0
‌
Q
R

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