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In an unbalanced 3-phase system, the currents are measured as Ia = zero, Ib = 6โ 60ยฐ and Ic = 6โ โ120ยฐ. The zero sequence, positive sequence and negative sequence components will be
Zero, (3 โ j3โ), (โ 3 + j3โ)
Zero, ( โ 3+ j3โ), ( 3 โ j3โ)
Zero, ( โ 9+ j 33โ), (9 โ j33โ)
Zero, ( 9 โ j33โ), (โ 9 + j33โ)