Table 1. Dependence of Magnetic Force on a Current Accepted value of the magnetic field T Current I, A Balance reading for Mass Average Mass Force -F, N Magnetic field (two significant figure), g from the (two significant formula (3) figure), g B, T Force up Force down 0 0.5 1 1.5 2 2.5 3 Slope of the graph of Force F versus I N/A Magnetic Field from graph T Percent error