MCQ
$\text{ABC}$ is an equilateral triangle. Charges $+ q$ are placed at each corner. The electric intensity at $O$ will be
- A$\frac{1}{4 \pi z_0} \frac{q}{r^2}$
- B$\frac{1}{4 \pi \varepsilon_0} \frac{q}{r}$
- ✓Zero
- D$\frac{1}{4 \pi \varepsilon_0} \frac{3 q}{r^2}$
