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A ring of radius 0.5m has a gap of 0.002n m. If the ring carries a charge of +1.0C
distributed uniformly along it, then the electric field at the centre of the ring is
(a) 7.5x10' NC
(b) 7.2x10' NC
+
(c) 6.2x10' NC
+
+
(d) 6.5x10' NC

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