explain why the dipole movement of chlorobenzene is lower than that of cyclohexyl chloride

The dipole moment of chlorobenzene is less than cyclo hexyl chloride as in chloro benzene C-Cl bond is sp2 hybridised where  as in cyclohexyl chloride the C_cl bond is Sp3 Hybridised . as sp2 has more s character and more electronegative than sp3. Chlorobenzene is less polar than cyclohexyl chloride.