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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A thin semi – circular ring of radius r has a positive charge q distributed uniformly over it. The net field E at the centre O is

A thin semi – circular ring of radius r has a positive charge q distributed uniformly over it. The net field E at the centre O is

A thin semi - circular ring of radius r has a positive charge q distributed uniformly over it. The net field E at the centre O is