Rationalised 2023-24
Physics
66
In an external electric field, the
positive and negative charges of a non-
polar molecule are displaced in opposite
directions The displacement stops when
the external force on the constituent
charges of the molecule is balanced by
the restoring force (due to internal fields
in the molecule) The non-polar molecule
thus develops an induced dipole moment The dielectric is said to be polarised by
the external field