A conductivity cell has two electrodes $18 \mathrm{~mm}$ apart and having cross sectional area $2.0…

A conductivity cell has two electrodes $18 \mathrm{~mm}$ apart and having cross sectional area $2.0 \mathrm{~cm}^2$. What is value of cell constant?
  1. $0.9 \mathrm{~cm}^{-1}$
  2. $0.18 \mathrm{~cm}^{-1}$
  3. $3.6 \mathrm{~cm}^{-1}$
  4. $0.2 \mathrm{~cm}^{-1}$

Solution

Cell constant $=\frac{\mathrm{L}}{\mathrm{A}}=\frac{1.8}{2}=0.9 \mathrm{~cm}^{-1}$

Asked in: MHT CET 2022 (07 Aug Shift 2)

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