1.3 - 1.3 Three Pithhalls — 2 Three pithhalls are...

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Unformatted text preview: 1.3 Three Pithhalls — 2 Three pithhalls are suspended flern thin threads. Varieus ehjeets are then ruhhed against ether ehjeets [nplen against silk, glass against peljfester, ete.) and eaeh ef the pithhalls is eharged h}; teuehing thernwith ene ef these ehjeets. It is feund that pithh alls 1 and 2 attraet eaeh ether and that pithhalls 2 and 3 repel eaeh ether. Frern this we can eenelude that 1 and 3 can}? eharges efeppesite sign. 1 and 3 can}? eharges efequal sign. All three earrp eharges efthe same sign Dne ef the ehjeets earries ne eharge. 5. We needte de Inere eaperirnents te determine the si efthe eharrs. Answer: 5. Charges ef eppesite sign attraet, eharges ef equal sign repel, and any; type ef eharge attraets a neutral ehjeet. Se 1 and 2 either €311]? eharges ef eppesite eharge er ene ef the twe is neutral and the ether eharged. Sinee 2 and 3 repel, heweser, we knew that 2 and 3 earrp eharges ef equal sign. Se there are twe pessihilities: 2 and 3 earns eharges efequal sign and {I} 1 is neutral , er {ii} 1 carries a charge efthe eppesite sign te that efE and 3. ...
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