Electrostatics

Question: ABC is an equilateral triangle. Charges $+ \,q$ are placed at each corner. The electric intensity at $O$ will be

1) $\frac{1}{{4\pi {\varepsilon _0}}}\frac{q}{{{r^2}}}$

2) $\frac{1}{{4\pi {\varepsilon _0}}}\frac{q}{r}$

3) Zero

4) $\frac{1}{{4\pi {\varepsilon _0}}}\frac{{3q}}{{{r^2}}}$

Solution:

Explanation: Explanation

electric-field-potential

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