Below are typical values of resistivity for various samples of water. Suggest reasons for thewide variation in values.SampleResistivity (2m)Pure water2x107Distilled water5x105Rainwater2x104Tap water100-5000Sea water30

Answered: Below are typical values of resistivity…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Below are typical values of resistivity for various samples of water. Suggest reasons for the
wide variation in values.
Sample
Resistivity (2m)
Pure water
2x107
Distilled water
5x105
Rainwater
2x104
Tap water
100-5000
Sea water
30

Expert Solution

Step 1

Conductivity is inversely proportional to the resistivity,

we know,

conductivity( $σ$ )= $\frac{1}{ρ}$

where, $ρ$ =resistivity

The presence of salt in water increases its conductivity. So, less will be resistivity. We know salt water can conduct current more than normal water due to electrolytic conductivity.

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