Struggling to understand how this answer works.(adsbygoogle = window.adsbygoogle || []).push({});

This is just a worked example from a university paper.

W = 220∫ V^-1 dV.....between the limits of 0.1 & 0.2....(Answer is 152.49 Rad)

I understand that the basic rule for a negative power would give us ln x, but from here I would say that the answer would be the difference of ln 0.2 and ln 0.1?

I need to get ln(2) for the answer to be correct, just not sure how?

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Struggling to understand how I get this answer

Have something to add?

Draft saved
Draft deleted

**Physics Forums | Science Articles, Homework Help, Discussion**