8.nd the resistance of variable cross section wire having radious small section a large section b. And length of wire L. (resistivity of wire is given rho)
![measurements - What is the cross-section area of an electrode when measuring electrolytic conductivity? - Physics Stack Exchange measurements - What is the cross-section area of an electrode when measuring electrolytic conductivity? - Physics Stack Exchange](https://i.stack.imgur.com/Awef6.png)
measurements - What is the cross-section area of an electrode when measuring electrolytic conductivity? - Physics Stack Exchange
![A: view of how the cross-sectional area (CSA) of a torus would look... | Download Scientific Diagram A: view of how the cross-sectional area (CSA) of a torus would look... | Download Scientific Diagram](https://www.researchgate.net/profile/Oscar-Candia/publication/6298022/figure/fig4/AS:668406005116950@1536371818867/A-view-of-how-the-cross-sectional-area-CSA-of-a-torus-would-look-lined-area-in-a_Q640.jpg)
A: view of how the cross-sectional area (CSA) of a torus would look... | Download Scientific Diagram
![Question Video: Calculating Cross-Sectional Area Change Using the Continuity Equation for Fluids | Nagwa Question Video: Calculating Cross-Sectional Area Change Using the Continuity Equation for Fluids | Nagwa](https://media.nagwa.com/479130821410/en/thumbnail_l.jpeg)