Charge q is uniformly distributed over a thin half ring of radius R. The electric field at the centre of the ring is

(1) $\frac{q}{2{\pi }^{2}{\epsilon }_{0}{R}^{2}}$

(2) $\frac{q}{4{\pi }^{2}{\epsilon }_{0}{R}^{2}}$

(3) $\frac{q}{4\pi {\epsilon }_{0}{R}^{2}}$

(4) $\frac{q}{2\pi {\epsilon }_{0}{R}^{2}}$

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Concept Questions :-

Electric field
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