two identicle baals each having a density rho r suspended frm a commn pt by two insulated copper stringsof eql length . both the balls have eq mass nd charge . in equllibrium both of them frm an angle theta frm vert nw they r immeresed in liquid of densit sigma (as the theta do not changes in liquid)find the di electric cons tant of the liquid

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aakanksha vyas · Answer

sigma/ sigma-rho=dielectric constant

Chetan Mandayam Nayakar · Answer

let 't' be tension in string. tcos&theta;=mg, tsin&theta;=(q 2 /4&pi;&epsilon; 0 r 2 ) r is distance between two balls. t(1-(&sigma;/&rho;))=(q 2 /4&pi;&epsilon; 0 kr 2 ), k is the dielectric constant

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