Potential at the centre of a regular hexagon with equal charges at its vertices

1. A.
   $1.8\times10^{5}$ volt
2. B.
   $3.6\times10^{5}$ volt
3. C.
   $5.4\times10^{5}$ volt
4. D.
   $7.2\times10^{5}$ volt

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1. A.
   $1.5 \times 10^{5}\text{ }V$
2. B.
   $1.8 \times 10^{6}\text{ }V$
3. C.
   $2.4 \times 10^{5}\text{ }V$
4. D.
   $3.2 \times 10^{6}\text{ }V$

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