The Capillary Electrometer in Theory And Practice Part I
The book The Capillary Electrometer in Theory And Practice Part I was written by author George James Burch Here you can read free online of The Capillary Electrometer in Theory And Practice Part I book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Capillary Electrometer in Theory And Practice Part I a good or bad book?
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D. To the ( 28 ) electrometer, and the commencement of the movement of the meniscus. This was done by photographing a normal excursion in the manner already described, although not with that apparatus, which had not then been constructed. An examination of the photograph showed that the fall of the signal was synchronous with the commencement of the excursion. The signal key was then arranged to actuate a rheotome, by which short currents of known duration were thrown into the electrometer. The... photographs obtained showed that with such differences of potential as would be employed in practice, the mercury ceases to move directly the source of electro-motive force is withdrawn, i. E, the instrument is practically dead-beat. It has been generally stated that it is perfectly dead beat, but this is only true of " slow" instruments. A strong con- denser charge communicated to a quick electrometer such as I employ, will in some cases cause the meniscus to overshoot its final position of rest by as much as 10 per cent, of the excursion, if there is no resistance in circuit.
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