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amperes angle of deflexion anode arranged attracted axis bar magnet become charged capacity catskin centre charged body charged conductor chemical circuit coating connected conveying an electric copper current is flowing current is set current strength deflected difference of potential disc discharge disruptive discharge earth ebonite electric current electric field electric lines electricity resident electrification electroscope equal experiment galvanometer glass greater heat horizontal hydrogen increased induced current induced E.M.F. insulated kathode Leyden jar liberated lines of force machine magnet-pole magnetic field magnetic meridian marked pole metal molecules negatively charged neighbourhood number of lines number of turns Ohm's law ohms opposite direction parallel passed placed plane plate platinum polarity positively charged proportional quantity of electricity repelled right angles rotate rubbed secondary cell shown in Fig sphere steel substance surface density suspended tangent tangent galvanometer Tangent Law temperature unmarked pole vessel voltaic cell voltameter whilst wire conveying zinc