Ohm’s Law states:
V= I • R
where V is voltage (volts)
where I is current (amps)
and R is resistance (ohms)
Rearrange the equation to solve for current:
I = V/R
Now plug in what you know:
I = (120 volts)/(0.2 ohms)
Solve for I:
I = 600 amps
Hope this helps!