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Question
Conductivity of a solution is 6.23 x 10-5 Ω-1cm-1 and its resistance is 13710Ω. If the electrodes are 0.7cm apart, calculate the cross-sectional area of electrode.
Solution
ross-sectional area of electrode:
`k=1/R*l/a`
`a=1/R*l/k`
`a=1/13710*0.7/(6.23*10^-5)`
`a=0.82cm^2`
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