1. The problem statement, all variables and given/known data Two scales on a voltmeter measure voltages up to 20.0 and 30.0V, respectively. The resistance connected in series with the galvanometer is 1680 ohms for the 20.0V scale and 2930 ohms for the 30.0V scale. Determine the coil resistance and the full-scale current of the galvanometer that is used in the voltmeter 2. Relevant equations V=IR 3. The attempt at a solution First I'm confused at is this all in same circuit or in two different ones? To find Rc I'm pretty sure I need to use the equation: V= I/R+Rc. I'm not sure how to get this problem started.