Reports

Space Charge in Exhaust of Motor Vehicles

Science  12 Jun 1959:
Vol. 129, Issue 3363, pp. 1610
DOI: 10.1126/science.129.3363.1610

Abstract

Exhaust gases are electrically charged, usually positively but sometimes negatively. This charge does not depend on the electric potential of the vehicle. Whether the charge is positive or negative seems to depend on whether water droplets or carbon particles predominate in the exhaust.

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