Electricity for public schools and colleges (1891)
Larden, W. (Walter), b. 1855 or 6 · London : Longmans · leaf 150
one or more standard condensers. The upper plates ofboth were charged from the same source, and therefore to the samepotential ; and the under plates were put to earth or were at zeropotential. If the charges upon the upper plates were + a and + brespectively, then those upon the lower plates would… … n. It is not difficult to see that if a and b were equal, then thecharges + a and— b would (verynearly) neutraliseone another. Thewire connectingthese plates com-municated with adelicate electro-scope : and thusit could be seen ^^^^- ^=- • E^^- whether there was neutralisation or no. Standard…
Electricity
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