JEE Advanced 2021 Paper 1

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Question Stem for Question Nos. 9 and 10
Two point charges Q and +
Q
3
are placed in the xy-plane at the origin (0,0) and a point (2,0), respectively, as shown in the figure. This results in an equipotential circle of radius R and potential V=0 in the xy-plane with its center at (b,0). All lengths are measured in meters.
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Question : 9
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