The mathematical theory of electricity and magnetism (1911)
Jeans, James Hopwood, Sir, 1877-1946 · Cambridge [Eng.] : University Press · leaf 87
an unduly large amount of space. For this reason standard con-densers are usually made of this pattern. 90. Guard Ring. In both the condensers described the capacity canonly be calculated approximately. Lord Kelvin has devised a modificationof the parallel plate condenser in which the error caused… … The principle consists in making one plate B of the condenser larger than the second plate A, the remainder of the space opposite B being occupied by a guard ring C which fits A so closely as almost to touch, and is in the same plane with it. The guard ring C and the plate A, if at the same…
Electricity · Magnetism
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