Okay, here's a simplified explanation suitable for a high school student:

The electric field (E) at a point on the axial line of a dipole is:

E = (1 / 4πε₀) * (2p / r³)

Where:

* ε₀ is the permittivity of free space
* p is the dipole moment (strength of the dipole)
* r is the distance from the center of the dipole to the point where you're measuring the field. This formula assumes r is much larger than the separation between the charges forming the dipole.
