1. The problem statement, all variables and given/known data An ammeter has a range of 10mA or 0.01A and a resistor of 20Ω. Three shunts are used: R1 = 4Ω ; R2 = 2Ω ; R3 = 4Ω What will the different ranges be (m3, m2, m1)? 3. The attempt at a solution I started by calculating the voltage: Ua = Ia ⋅ Ra Ua = 0.01A ⋅ 20Ω = 0.2V Then I started calculating the current for each resistor I1 = Ia ⋅ Ra / R1 = 0.01A ⋅ 20Ω / 4Ω = 0.05A I2 = Ia ⋅ Ra / R2 = 0.01A ⋅ 20Ω / 2Ω = 0.1A I3 = Ia ⋅ Ra / R3 = 0.01A ⋅ 20Ω / 4Ω = 0.05A And here is where I get lost. On my answer sheet it says that: m3 = 0.075A ; m2 = 0.05A ; m1 = 0.03A Can someone explain me what I'm missing here? Thanks for reading up until here.