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If the conductivity of mercury at \mathrm{O^{\circ} \mathrm{C}}  is  \mathrm{1.36 \times 10^6 \mathrm{sm}^{-1}}and the resistance of a cell containing mercury is  \mathrm{0.428 \Omega}  then constant of cell is

Option: 1

 6.44 


Option: 2

 3.72 


Option: 3

 1.87 
 


Option: 4

 5.82


Answers (1)

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\mathrm{ K=1.36 \times 10^6 \\ }

\mathrm{ R=0.428 \Omega \\ }

\mathrm{ G=\frac{1}{R}=\frac{1}{0.428} \\ }

\mathrm{ G^*=\frac{K}{G}=\frac{1.36 \times 10^6}{\frac{1}{0.428}} \\ }

\mathrm{ G^*=5.82 }.

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