Electrical Engineering > GATE 2017 Set-1 > Power in AC Circuits
A source is supplying a load through a 2-phase, 3-wire transmission system as shown in the figure below.
The instantaneous voltage and current in phase-a are
va(t) = 220 sin(100πt) V and
ia(t) = 10 sin(100πt) A, respectively.
Similarly, for phase-b, the instantaneous voltage and current are vb(t) = 220 cos(100πt) V and ib(t) = 10 cos(100πt) A, respectively.
The total instantaneous power flowing from the source to the load is _________.
Similarly, for phase-b, the instantaneous voltage and current are vb(t) = 220 cos(100πt) V and ib(t) = 10 cos(100πt) A, respectively.
Correct : a
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