A 120 volt single phase circuit has 1,800 volt-amps. What is the amperage of this circuit?

Question

A 120 volt single phase circuit has 1,800 volt-amps. What is the amperage of this circuit?

Answer 1

to get the amps, divide 1800 by 120V.

A volt x amp is another meaning for watts

Should be 15 amps

Great question

Answer 2

Volt-amps is not another meaning for watts.  It is exactly what it says and that is (volts) x (amps).

Watts =( I) squared x (R) or

Watts = (V) squared / (R) or

Watts = (V) x (I) x Power factor

So forget about watts in this problem.  You can also forget about the phase angle between voltage and current in this problem. You don`t have to assume anything because It was given that:

(volts) x (amps) = 1800 so

(120) x (amps) = 1800 and

(amps) = 1800 VA / 120 V = 15 A

Answer 3

Assuming the phase between voltage and current is 0°, then the current is 1800 divided by 120 = 15 amps.