Basic Maths and Units and DimensionsEasy
Question
A wire, of length L (= 20 cm), is bent into a semicircular arc. If the two equal halves, of the arc, were each to be uniformly charged with charges ± Q, [|Q| = 103 ε0. Coulomb where ε0 is the permittivity (in SI units) of free space] the net electric field at the centre O of the semicircular arc would be :


Options
A.(50 × 103N/C)ĵ
B.(50 × 103N/C)î
C.(25 × 103N/C)ĵ
D.(25 × 103N/C)î
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