1. The problem statement, all variables and given/known data The manufacturer of a 12V car headlight specifies it will draw a current of 6A. You would like to check this claim with an ammeter designed to measure currents up to 10A and having a resistance of 0.1 Ohms. http://img168.imageshack.us/img168/7831/oaammeterqk3.th.png [Broken] What is the current readings in (A) of figure a) and b) 2. Relevant equations I=V/R 3. The attempt at a solution So I think a has a value of 5.71 because 12/(2+.1)...is this wrong...and would figure b) be 0 since the fuse would blow? i'm basically lost.