1.

Three equal point charges are located at the vertices of an equilateral triangle on the circumference of a circle of radius r. The total electric field intensity at the centre of the circle would be

A. zero
B. \(\frac{{3q}}{{4\pi {\varepsilon _0}{r^2}}}\)
C. \(\frac{q}{{12{\varepsilon _0}{r^2}}}\)
D. \(\frac{q}{{3\pi {\varepsilon _0}r}}\)
Answer» B. \(\frac{{3q}}{{4\pi {\varepsilon _0}{r^2}}}\)


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