An electric dipole is placed in a non-uniform electric field. Then the electric force on the dipole depends upon

If px→, py→ and pz →are the components of dipole moment and Ex→ , Ey→ and Ez→ are the components of electric field , then Fnet→=∇→p→.E→=px∂Ex∂xi^+py∂Ey∂yj^+pz∂Ez∂zk^