Resistance from a V-time graph

by max1205
Tags: graph, resistance, vtime
 P: 202 $$R = \frac {-t}{\ln\frac{V}{Vo}C}$$. However that gives me 41.22 ohm so maybe there's a typo in the problem? edit: added latex edit2: actually you didn't solve for 1/R like I first thought, you're just off by 3 orders of magnitude because you probably forgot to convert the milliseconds to seconds.