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# AC Phasor Question. watch

1. I'm doing the following question:

In a particular network the voltage supply is given by
v = 311 sin(200t + 7) V
and it delivers a current of
i = 14 sin(200t - 16) A.
Express the voltage and current as phasors and calculate the average power being supplied.

Well the answers when converting it to phaser form, the magnitude for both is divided by root 2.
I was wondering how I was to tell that the voltages and currents given were maximum values and not rms values, or was that a mistake in the solutions?
2. When expressed in the form V = Vₒ Sin (wt + phi) the term Vₒ is always the peak value.
The RMS value is then 0.707 Vₒ
In phasor form, Vₒ is the "radius" of the circle.
3. EDIT:

(Original post by Stonebridge)
When expressed in the form V = Vₒ Sin (wt + phi) the term Vₒ is always the peak value.
The RMS value is then 0.707 Vₒ
In phasor form, Vₒ is the "radius" of the circle.
Wait, for a phasor should it be Vmax and Imax or rms values? Or does it depend on the situation? i.e. if I want to calculate peak or average power?

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