My book says that there is not net magnetic force between two non-magnetic materials. Shouldn't there be a little magnetic force rather than 'no net force' between two non-magnetic substances. Aren't they successful to influence the atomic currents of other to a considerable degree? How is field flux analogous to electric current? A current carrying conductor is placed in a magnetic field perpendicular to it. Of the two, what causes the action such that it experiences a reaction form other as per newton's third law.