It is your first day on the job as an engineer An intern wor

It is your first day on the job as an engineer. An intern working for you computed the power of an electric load connected to a sinusoidal source: P = Vrms x Irms = 120Vrms*10Arms = 1200W Do you trust the intern’s knowledge of circuit analysis? Why or why not?

Solution

P = Vrms x Irms = 120Vrms*10Arms = 1200W
Actually Power should have power factor in that that means power is the multiplication of voltage,current and power factor.
That 1200VA is the apparent power only.