There are 2 formulae in use here. Inductance(XL) = 2pi x freq x inductance(L), and current(I) = volts(RMS) divided by ohms. Transposing the formulae for XL (L = XL divided by (2pi x freq) we find that the L at 60 hertz is 0.143 Henrys. So at 50 hertz the resistance is 2pi x freq x inductance(L) = 44 ohms. The current at 100 volts will be volts divided by ohms = 2.27 amps.