How to Calculate and Solve for Resistivity | Electric Resistivity
Last Updated on August 8, 2022
The resistivity is illustrated by the image below.
To compute for resistivity, three essential parameters are needed and these parameters are Cross-sectional Area (A), Length (l) and Resistance (R).
The formula for calculating the resistivity:
ρ = RA/l
Where:
ρ = resistivity
R = Resistance
A = Cross-sectional Area
l = Length
Let’s solve an example;
Find the resistivity when the resistance is 10, the cross-sectional area is 4 and the length is 2.
This implies that;
R = Resistance = 10
A = Cross-sectional Area = 4
l = Length = 2
ρ = RA/l
ρ = (2)(10)/4
ρ = (20)/4
ρ = 5
Therefore, the resistivity is 5Ω-m.
Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the resistivity.
To get the answer and workings of the resistivity using the Nickzom Calculator – The Calculator Encyclopedia. First, you need to obtain the app.
You can get this app via any of these means:
Web – https://www.nickzom.org/calculator-plus
To get access to the professional version via web, you need to register and subscribe to have utter access to all functionalities.
You can also try the demo version via https://www.nickzom.org/calculator
Android (Paid) – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator
Android (Free) – https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator
Apple (Paid) – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8
Once, you have obtained the calculator encyclopedia app, proceed to the Calculator Map, then click on Materials and Metallurgical under Engineering.
Now, Click on Electrical Properities under Materials and Metallurgical
Now, Click on Electrical Resistivity under Electrical Properities
Now, Click on Resistivity under Electrical Resistivity
The screenshot below displays the page or activity to enter your values, to get the answer for the resistivity according to the respective parameter which is the Cross-sectional Area (A), Length (l) and Resistance (R).
Now, enter the values appropriately and accordingly for the parameters as required by the Cross-sectional Area (A) is 10, Length (l) is 4 and Resistance (R) is 2.
Finally, Click on Calculate
As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the resistivity and presents the formula, workings and steps too.
