You measured a current of 150A in your starter cable while starting. The battery voltage was 12V at that time. Which percentage of the power provided by the battery was actually used by the starter? Positive supply and ground cable have a cross section of 10mm^2. The total length of the positive supply cable is 4.5m, the ground cable is 1.2m long. Assumptions: the specific resistance of copper is independent from temperature, ground cable is directly connected to battery negative, master switch and starter relais do not have any resistance Specific Resistance of copper = 0.017μOhm*m.

1. 95.6%
2. 92.7%
3. 99.9%
4. 50%
5. 87.9%Correct
6. 75 %