Recent content by cat_facts

i actually do need to find the resistance, and not the resistivity. since that is just 1/σ. the geometry tsny is using is perfect, but a quarter circle instead of a full circle. isn't it just I = (σA/L)* V then R = L/σA? would the strength of Vo matter to the problem? I get that it just...

Homework Statement There is a bent bar with inner radius A and outer radius B and thickness C. Bar is bent from the x-axis to the y-axis in a quart circle. 1) If the bottom of the bar has potential 0 and the top has potential Vo, find Resistivity. 2) If the inner circle had potential 0 and...