The resistance of a decimolar solution of $NaCl$ is $30 \ \Omega$. Calculate the conductivity of the solution if the cell constant is $0.33 \ cm^{-1}$.
- A$0.025 \ \Omega^{-1} \ cm^{-1}$
- B$0.035 \ \Omega^{-1} \ cm^{-1}$
- C$0.011 \ \Omega^{-1} \ cm^{-1}$
- D$0.029 \ \Omega^{-1} \ cm^{-1}$
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