Answer:
 150A
Step-by-step explanation:
Given parameters: 
Potential difference = 120V
Resistance = 0.8Ω 
Unknown: 
Current = ? 
Solution: 
From ohm's law; 
 I = 
 
 
I is the current 
V is the voltage
R is the resistance
 Now insert the parameters and solve; 
 I = 
 = 150A
 = 150A