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B Salt concentration and its electrical resistance

  1. Mar 30, 2017 #1
    What would be the theoretical relationship between/ a formula for the salt concentration in distilled water and its electrical resistance?
  2. jcsd
  3. Mar 30, 2017 #2


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    Is a salt water solution an ohmic conductor? i.e. does it even have an electrical resistance that can be quantified with a single number?
  4. Mar 31, 2017 #3
    Depends on the concentration of salt in water. I am doing an investigation where salt would be the independent variable and its resistance would be dependent. For practical formula for resistance I'm using Ohm's Law (R= V/I), but I need a theoretical value as well.
  5. Mar 31, 2017 #4
    A solution of salt would have a characteristic conductivity (or resistivity). The resistance of an actual cell would depend on its geometry. If you google "salt solution conductivity" I'm sure you'll find lots of information.
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