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Sahay Sir > Question Answers > Arihant Physics by D.C Pandey > Volume 2 > Chapter 2 - Electrostatic Potential and Capacitance > 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