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The results of an investigation into the electret behaviour of a defined chemical substance, 1-tetradecanol, are presented. Measurements were made of the discharge current, the macroscopic dipole moment and the internal potential distribution of the electrets. The results are consistent with the two-charge theory where the internal polarization is caused by space charges resulting from the movement of impurity ions under the influence of the applied field.
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Cross et al. (1966) studied this question.
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