Uploaded July 2019 | Updated September 2026, 1 hour ago

---

Includes four different worked examples for calculating resistance and resistivity.

Resistivity is a property of a material that tells you how strongly it resists or conducts the flow of electric current. A low resistivity indicates a material that allows the flow of electric current. Resistivity is commonly represented by the Greek letter ρ (rho). The SI unit of electrical resistivity is the ohm-meter (Ω⋅m). Resistance of a conductor is directly proportional to the length of the conductor and inversely proportional to the cross-sectional area of the conductor.

Social Media for Step by Step Science:
Teacher Pay Teachers Store: tinyurl.com/y6d2cdfj
Instagram: instagram.com/stepbystepscience101
Website: stepbystepscience.com
Blog: stepbystepscience.com/blog
Link Tree: https://linktr.ee/stepbystepscience

Link for sharing this video: youtu.be/pb8J4qaoacs

Support my channel by doing all of the following:
(1) Subscribe, get all my physics, chemistry and math videos
(2) Give me a thumbs up for this video
(3) Leave me a positive comment
(4) Share is Caring, sharing this video with all of your friends