Four short dipoles each of dipole moment ‘p’ are placed at the vertices of a square of side a. The direction of the dipole moments are shown in the figure.

Select all that apply

• Option A

  Electric field at O is $\sqrt2$p/(2πε₀a³).

• Option B

  Electric field at O is $\sqrt2$p/(πε₀a³).

• Option C

  Electrostatic potential at O is zero.

• Option D

  Net dipole moment is 2p.