In contrst to conductors, dielectrics have no free charges that can move through the material under the influence of an electric field All electrons are bounded Positive and negative charges can move in opposite direction with a small displacement of atomic dimensions.In contrst to conductors, dielectrics have no free charges that can move through the material under the influence of an electric field. All electrons are bounded. Positive and negative charges can move in opposite direction with a small displacement of atomic dimensions