Electricity for public schools and colleges . epeatindefinitely the cycle of operations indicated above ; and we shallthus get a series of discharges between C and D, each morevigorous than the last, and shall be increasing the difference ofpotential between A and B. It remams to discuss some convenient arrangements designedto repeat continuously and rapidly such a cycle of operations. Note. — In what follows weshall use the symbol A V todenote difference of potential. § 3. Sir W. ThomsonsWater-dropping Accumu-lator.—In the arrangementto be described in thissection there are two pointsto be no
Electricity for public schools and colleges . epeatindefinitely the cycle of operations indicated above ; and we shallthus get a series of discharges between C and D, each morevigorous than the last, and shall be increasing the difference ofpotential between A and B. It remams to discuss some convenient arrangements designedto repeat continuously and rapidly such a cycle of operations. Note. — In what follows weshall use the symbol A V todenote difference of potential. § 3. Sir W. ThomsonsWater-dropping Accumu-lator.—In the arrangementto be described in thissection there are two pointsto be noticed. First: we make no useof the discharges spoken ofabove; we only aim at in-creasing the A V betweentwo (hollow) conductorsthat are initially at a smallAV. Secondly : instead of twovessels we have four, con-nected in pairs so as really• ^ to form two. The accompanyingfigure is a sectional sketch of the apparatus in question. The two])airs of vessels, A A and B B respectively, are at a certain A V asindicated by the -f and ~ CH. VII. INDUCTION MACHINES I03 In A and B are the ends C and D of froma supply that is at the zero V of the earth. So that C and Dwill be charged inductively with — and + electricities respectively ;the orifices being so small that the water breaks away in detacheddrops, so that these drops are continually carrying away — and+ charges respectively. They are caught by funnels in tlie in-terior of B and A respectively ; and so they give up their chargesto these vessels, before dropping away to waste. The reader willsee that it is essential for the water to fall in drops. Hence B and B are being continually charged with —, andA and A with + electricity ; and therefore the A V between Aand B will continually increase. It is important to notice that this increase of A V, both in thisapparatus and in the Holtz, Voss, and other machines, pro-ceeds on compowid ijiterest principles. For as the A V betweenA and B increases
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Keywords: ., bookcentury1800, bookdecade1890, bookpubl, booksubjectelectricity
