current flow is proportional to the voltage and inversly proportional to the resistance
Using Ohm's law V:IR .I:V/R..I:100/5-20...I-20ampere
Yes, but you need to convert inductance and capacitance to reactance.
One form of Ohm's Law: Current = (Voltage) / (Resistance) I = E / R = 3/10 = 0.3 Amp = 300 mA
Ohms Law! E=IR Voltage equals current times resistance. Get out the old calculator...