TRUE, FALSE and FALSE

The inverse-square behavior in Coulomb's law always "applies", regardless of the situation. However, when we deal with a spatially-extended distribution of charge, the details of the geometry affect how the total resultant field drops off with distance. For example, for an infinite flat sheet of charge (see the next chapter), the field stays the same at all distances from the sheet. For a dipole, the field drops off more steeply (inverse cubed) than for a single point charge -- we can somehow think of the two opposite charges of the dipole as getting closer to cancelling each other's effect when observed from a longer distance.