# Galvanometer has a coil with a resistance

by GravityGirl
Tags: galvanometer
 Mentor P: 41,144 Two things on part 1. First, when you cut and paste in the text that has character set formatting, it changed the 81 Ohms in the first sentence to 81 W ("W" is the Ohms symbol in the Symbol character set for Windows). If you want to keep it Ohms, use latex like this: $$81 \Omega$$ You can press the Quote button on this post to see the format of the latex for the line above. Second, 131mA = 0.131 A. You used 1.31 in your 3rd equation for some reason, instead of 0.131. Does that get you going again?