In the one star three wire circuit, Za = ZB = ZC = 100 Ω, the line voltage is 380V, and now Za is open circuit. Try to find the effective value of current flowing through ZB and ZC at this time Ask for answers that you can do,

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1. Given that I x i + I 3y-8 I + I Z-2 I = 0, find the value of the algebraic formula x + 3Y + Z? Given that I x i + I 3y-8 I + I Z-2 I = 0, find the value of the algebraic formula x + 3Y + Z?
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7. Find all roots of the equation Z & # 178; = 8i,
8. In the complex plane, which quadrant is the point corresponding to the complex z = 2-I
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