Rearranging Resistance Formula: Y = Mx + C • Physics Forums
Feb 21, 2011 · The discussion focuses on rearranging the resistance formula R = (resistivity x length) / 4 (d/2)² into the linear form Y = Mx + C. Participants clarify that resistance (R) is the dependent …
Why Is Length Divided by Area in the Resistivity Formula R=P*(L/A)?
Oct 22, 2014 · Hello, I am curious why in the resistivity formula you divide the length by the area? R=P*(L/A). I cannot figure why you would not take the L*A to get volume?
Does Ohm's Law Equate to the Resistivity Formula R = ρ (L/A)?
Nov 11, 2025 · Ohm's Law is an interesting observation relating the voltage and current in a circuit. Not all materials obey Ohm's Law. In fact, resistance of most real materials are to a certain degree …
What Formula Should I Use to Calculate Hydrogen Plasma Resistivity at …
Jan 22, 2013 · The discussion focuses on calculating the resistivity of hydrogen plasma at 1 keV using specific formulas. Participants emphasize the importance of understanding the relationship between …
How Do You Calculate Resistance in a Radial Cylinder System?
Feb 7, 2009 · Study the derivation of the resistance formula for cylindrical conductors. Explore the impact of material resistivity on electrical resistance. Learn about the applications of radial resistive …
Calculating Resistance(not at RT) using the Resistivity Formula
Jul 17, 2006 · They seek clarification on the formula R= (L/A)ρ= (L/A)ρ0 (α (T - T0)+1), specifically regarding the meanings of ρ0, α, and T0, and how to apply it to the "Constantan" alloy. Additionally, …
Lab: Plot graph of resistance, R (in Ohms) versus 1/d^2
Nov 17, 2016 · The calculations revealed discrepancies in the expected slope, prompting discussions on the accuracy of the plotted data and the correct interpretation of the resistivity formula, R = 4pL/pi * …
What Do p and l Represent in the Resistance Formula R = pl/A?
Aug 9, 2006 · The resistance formula R = pl/A defines resistance (R) in terms of resistivity (p), length (l), and cross-sectional area (A). In this equation, p represents the resistivity of a material measured in …
Resistance of a cylindrical resistor - Physics Forums
Aug 2, 2017 · The discussion centers on the resistance of cylindrical resistors, specifically addressing the formula for resistivity, p = RA/L, where R is resistance, A is cross-sectional area, and L is length. …
Resistance, Current, two cylinders - Physics Forums
Oct 6, 2011 · The discussion focuses on calculating the resistance between two concentric metallic cylinders submerged in seawater, with an emphasis on the relationship between resistivity, current, …