Electrical Engineering > Gate 2018 > Load flow
In the figure, the voltages are 𝑣1(𝑑) = 100cos(πœ”π‘‘), 𝑣2(𝑑) = 100cos(πœ”π‘‘ + πœ‹/18) and 𝑣3(𝑑) = 100cos(πœ”π‘‘ + πœ‹/36). The circuit is in sinusoidal steady state, and 𝑅 << πœ”πΏ. 𝑃1, 𝑃2 and 𝑃3 are the average power outputs. Which one of the following statements is true?
gate Electrical 2018 3
A
𝑃1 = 𝑃2 = 𝑃3 = 0
B
𝑃1 < 0, 𝑃2 > 0, 𝑃3 > 0
C
𝑃1 < 0, 𝑃2 > 0, 𝑃3 < 0
D
𝑃1 > 0, 𝑃2 < 0, 𝑃3 > 0

Correct : c

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