$ABC$ is an equilateral triangle. Charges $ + \,q$ are placed at each corner. The electric intensity at $O$ will be
$ABC$ is an equilateral triangle. Charges $ + \,q$ are placed at each corner. The electric intensity at $O$ will be
- A
$\frac{1}{{4\pi {\varepsilon _0}}}\frac{q}{{{r^2}}}$
- B
$\frac{1}{{4\pi {\varepsilon _0}}}\frac{q}{r}$
- C
Zero
- D
$\frac{1}{{4\pi {\varepsilon _0}}}\frac{{3q}}{{{r^2}}}$
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