Problem: Find the current that flows through the filament of a 400 Watts flat iron connected to a 220 volt power line.
Attempt: The only formula I could think of that will connect voltage and current is P = I*V, which results to I = (400) / (220) = 1.82 A.
Sadly, the answer is 500 mA. The question is how? Any help would be appreciated.
Best Answer
I get 1.82 Amps (not V), so it seems that the 500 mA answer you were given is wrong.