AbstractsChemistry

The region around an electrically charged object is considered to be pervaded by an electrostatic field, the idea of a field being adopted to explain the "action at a distance of the charge. The field strength at any point is measured by the work required to move a unit charge to this point against the repulsion of the field. The field strength, or potential gradient, is commonly expressed in volts/cm. and the potential difference across the field is measured in volts. Capacity is defined by the equation QrCE where Q, is the quantity of the charge in coulombs, E is the field potential in volts and C is the capacity in farads. A common unit of capacity is the micro micro farad, i.e., 10- 12 farad.[...]