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A uniformly charged semicircular ring (A...

A uniformly charged semicircular ring (ABCD) produces an electric field E0 at the centre O. AB, BC and CD are three equal arcs on the ring. Portion AB and CD are cut from either side and removed. Find the field at O due to remaining part BC.

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The correct Answer is:
`(E_(0))/(2)` perpendicular to AD
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