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Class 12 Physics Practice Test: Potential Energy of a System of Charges
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Class 12 Physics Practice Test: Potential Energy of a System of Charges
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1. Four point charges 2*10-9C, 1*10-9C, -2*10-9C, 3*10-9C are placed at the corners of a square of side length √2m. What is the electric potential at the center of the square?

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