to the meridian due to the voltaic coli, 252 PROBLEMS IM MAGNETISM. Hence taking moments about 0, we have, if S be thedeviation ADD, Tim. CD cos S = Ilm. CD sin S; .•.- * = T=i tano. This form of galvanometer is called a Tangent Galvano-meter. Cor. 3. If the coil be movable about a vertical… … rim. CD=^Em. CD sin S; . E . ^ .. «< = p sm 0. This form of the instrument is called a Sine Galvano-meter. 293. Prop. XIV. To find the throw of a galvanometer needleowing to the passage of an instantaneous electric dischargethrough it. PROBLEMS IN MAGNETISM. 253 If the strength of current at any…
Electricity
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