Date of Award
Master of Arts (M.A.)
Certain waxes when solidified in a strong electric field exhibit unusual electrical properties. Several days after formation there is a polarization in the direction of the field which seems to persist for an indefinite length of time. The surface that was in contact with the anode during formation first ass a negative charge and then obtains a positive charge, which under proper conditions is practically permanent. The surface that was in contact with the cathode first has a positive charge and then obtains a negative charge which is the permanent charge.
Lundeen, Ernest F.. (1932). The Electret - An Effort to Find the Cause of its Permanent Polarization. University of the Pacific, Thesis. https://scholarlycommons.pacific.edu/uop_etds/4081