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The electric field at the origin is alo,...

The electric field at the origin is alo,n,g the positive x-axis. A small circle is drawn with the centre at the origin cutting the axes at points A, B, C and D having coordinates (a,0), (0,a), (-a,0),(0,-a) respectively. Out of the points on the periphery of the circle, the potential is minimum at

A

A

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B

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C

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D

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