Six point charges are placed at the vertices of a regular hexagon of side $a$ as shown. If $E$ represents electric field and $V$ represents electric potential at $O$, then
A$E=0$ but $V \neq 0$
B$E \neq 0$ but $V=0$
C$E=0$ and $V=0$
D$E \neq 0$ and $V \neq 0$
Medium
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C$E=0$ and $V=0$
c (c)
$V=\frac{3 k q}{r}-\frac{3 k q}{r}=0$
from the figure
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