If an electric dipole is positioned in a uniform electric field,...

An electric dipole consists of two equal and opposite charges, $+q$ and $-q$, separated by a small distance.

When placed in a uniform electric field $\vec{E}$, the force experienced by the positive charge is $\vec{F}_{+} = q\vec{E}$ and the force experienced by the negative charge is $\vec{F}_{-} = -q\vec{E}$.

The net electric force on the dipole is the vector sum of the forces acting on the individual charges:

$\vec{F}_{net} = \vec{F}_{+} + \vec{F}_{-} = q\vec{E} - q\vec{E} = 0$

Thus, the net electric force on an electric dipole in a uniform electric field is always zero, regardless of the dipole's orientation or strength.